start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=2 article-no= start-page=59 end-page=64 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010324 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A study of x-rays protection in a hip-joint radiography examination kn-title=股関節X線撮影時の女性生殖腺防護についての検討 en-subtitle= kn-subtitle= en-abstract=Usually in a hip-joint radiographic examination for the youth including children, the gonads should be well protected with an appropriate lead shield etc. Since the male gonads are in the outside of the body, if covered with a lead shield, the shield can protect them. However, in the case of the female, since the gonads of exist in a pelvic cavity, the lead shield is cut to a specific pattern so that it can protect the ovaries and the womb, and it is set on the abdomen during the radiographic exposure. Since the scattered radiation on an X-ray film can be removed with the grid, the image of a lead shield is obtained clearly, and the gonads seem to be protected completely. The shield can not protect the gonads of the female from the scattered radiation, though it protects them almost completely from the primary X-rays beam. Therefore, the gonads have radioactive contamination from scattered radiation. Then, in order to estimate the amount of scattered radiation under the lead shield, the dose under the shield was measured by using a phantom in this research, changing lead shield width, the tube-voltage, and the monitoring depth of a phantom. As a results, the dose under the lead shield was observed considerably and showed the peak at the depth of 3 or 4cm. Therefore, it was thought that a careful caution was required for obviating lead shield in clinical. kn-abstract=幼小児を含めた若年者の股関節X線撮影検査においては鉛板などで生殖腺を防護して行うのが通常である。男性の場合は生殖腺は体外に露出しているので，それを鉛板で包むようにすればある程度目的は達成される。しかし，女性の場合，生殖腺は骨盤腔内に存在するため，卵巣及び子宮を防護でき診断目的領域にかからないように鉛板を成形し，腹壁上に置いて撮影する。X斬写真上ではグリッドで散乱線を除去しているため，鉛板の陰影がくっきりと撮影され，生殖腺は完全に防護されているように見える。しかし，体内では散乱線によるかなりの被曝があるものと考えられる。そこで今回，鉛板下の散乱線量を鉛板幅及び電圧を変化させ，ファントム内各深さの散乱線量を測定した。その結果，鉛板下の散乱線量が相当量認められ，その量は深さ3〜4cmでピークを形成した。鉛板幅による変化は幅が狭いほど線量は大きくなり，電圧による変化は60kVと80kVを比べると80kVの方が多くなった。これを鉛板なしの場合と比較すると，ファントム内意さが増すにしたがい増大した。したがって，臨床において鉛板がずれて再撮影をすることのないよう細心の注意が必要であると考えられた。 en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=2 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=3 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=4 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=澁谷光一 kn-aut-sei=澁谷 kn-aut-mei=光一 aut-affil-num=5 ORCID= en-aut-name=TamuraEri en-aut-sei=Tamura en-aut-mei=Eri kn-aut-name=田村恵里 kn-aut-sei=田村 kn-aut-mei=恵里 aut-affil-num=6 ORCID= en-aut-name=TanimotoEriko en-aut-sei=Tanimoto en-aut-mei=Eriko kn-aut-name=谷本江利子 kn-aut-sei=谷本 kn-aut-mei=江利子 aut-affil-num=7 ORCID= en-aut-name=ToriiFumiko en-aut-sei=Torii en-aut-mei=Fumiko kn-aut-name=鳥居史子 kn-aut-sei=鳥居 kn-aut-mei=史子 aut-affil-num=8 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=9 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=10 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科　学生 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科　学生 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科　学生 affil-num=9 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=10 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 en-keyword=股関節X線撮影 (Radiography Examination of Hip-joint) kn-keyword=股関節X線撮影 (Radiography Examination of Hip-joint) en-keyword=医療被爆 (Patient Dose) kn-keyword=医療被爆 (Patient Dose) en-keyword=X線測定 (Dosimetry) kn-keyword=X線測定 (Dosimetry) en-keyword=生殖腺防護 (X-rays Protection of the Gonads) kn-keyword=生殖腺防護 (X-rays Protection of the Gonads) END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=2 article-no= start-page=99 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2000 dt-pub=20000324 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=スクリーン／フィルム乳房撮影法における乳房線量測定システム kn-title=Breast dosimetry system in screen/film mammography en-subtitle= kn-subtitle= en-abstract=乳房X線撮影法において乳腺組織に対する平均放射線吸収線量，すなわち平均乳腺線量は放射線のリスクの最も有用な測定法であり，現在，乳房に対する線量の評価に用いられている指標である。一般に，平均乳腺線量は線質（HVL），X線管球ターゲット材料，管電圧，圧迫乳房厚さ，乳房構成および（ある程度）X線管電圧波形の関数であるとされている。平均乳腺線量は，上記の関数についての情報を備えた表が公表されており，一般にその表を使って決定されている。近年，インバータ式といわれる高周波X線発生装置が普及してきた。しかし，その装置用の表は，まだ公表されていない。我々の研究では，乳房組織をシュミレートするファントム（0〜100％乳腺組織，0〜100％脂肪組織）を使用して，28kVでMoターゲット―Moフィルタソースアセンブリーを備えた高周波X線発生装置のために，平均乳腺線量用のルックアップテーブルを作成した。同様に，乳房組織をシュミレートするファントムを使用して，乳房X線写真から，ディジタル・イメージプロセシング技術によって，乳房構成の評価を試みた。そして，ディジタイズされた臨床乳房X線写真から，平均乳腺線量を自動的に計算するシステムを構築した。サンプル数が少ないため断定はできないが，日本女性は，基準構成（50％の脂肪および50％の乳腺組織）と比較すると，脂肪が少ない傾向を分析結果は示唆していた。また，平均乳腺吸収線量の限度は，明確に規定されていないが，American College of Radiology（ACR）は4 mGyなどを推奨している。また日本では，3 mGyが推奨されているが，我々の撮影システムはこれらを十分満足していた。このように本システムは，平均乳腺線量の客観的な評価に寄与するとともに，DR（digital radiography）などに応用すると，すなわちルックアップテーブルをDRのコンピュータに保存しておけば，撮影後すぐに乳房構成および平均乳腺線量を算出できる可能性をもつ。 kn-abstract=The average glandular dose to glandular tissue m mammography is generally assumed to be a function of beam quality (HVL), x-ray tube target material, tube voltage, breast thickness, breast composition and, to a lesser extent, x-ray tube voltage waveform. The average glandular dose is generally determined from published tables with knowledge of the above function. Tables for a high frequency x-ray generator are not yet published. In our study, the lookup tables for the average glandular dose were made at 28 kV (high frequency x-ray generator), employing a breast simulating tissue (0-100% adipose tissue, 0-100% glandular tissue) phantom for an Mo target - Mo filter source assembly. We tried to estimate breast composition from x-ray mammograms by digital image processing techniques, also using the simulating tissue phantom. Then the system that automatically calculates the average glandular dose from digitized clinical x-ray mammograms was built. It is considered that this system can contribute to objective evaluation of the average glandular dose. en-copyright= kn-copyright= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=1 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=2 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=3 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=4 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=KadohisaShigefumi en-aut-sei=Kadohisa en-aut-mei=Shigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=Screen/Film Mammography (スクリーン／フィルム乳房撮影法) kn-keyword=Screen/Film Mammography (スクリーン／フィルム乳房撮影法) en-keyword=Breast composition (乳房構成) kn-keyword=Breast composition (乳房構成) en-keyword=Average glandular dose (平均乳腺線量) kn-keyword=Average glandular dose (平均乳腺線量) en-keyword=Entrance skin exposure (皮膚入射線量) kn-keyword=Entrance skin exposure (皮膚入射線量) en-keyword=Breast-equivalent material phantom (乳房組織等価ファントム) kn-keyword=Breast-equivalent material phantom (乳房組織等価ファントム) END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=23 end-page=28 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19991220 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Influence on the character of films used for density control of an automatic processor by the difference in the way of preserving kn-title=保存方法の違いによる自動現像機の濃度管理用フィルム特性への影響 en-subtitle= kn-subtitle= en-abstract=Though there are various reports on the way of preserving films used for density control of the automatic processor, it is hard to say that the best method isestablished. In　addition, the influences on density control or their comparisons by the difference way of preserving film between regular and orthochromatic films have been hardly reported until now. In this paper, three ways of preserving films were employed, which were at a room temperature, in a refrigeration and in a freezer after the films were opened, using a regular film, Fuji new-RX and three orthochromatic films, Konica SR-G, SR-V and SR-H. We investigated the influences on gross fog, speed index and average gradient of four films on three different ways of preserving film for 35 weeks. As a result, new-RX film wasn't influenced by the ways of the preservation. On the other hand, the orthochromatic films were so influences sensitively that the films couldn't be used for density control. It was considered that sensitizing dye stuff got denatured by dew condensation. kn-abstract=自動現像機の濃度管理に用いられるフィルムの保存については，種々の報告がなされており，最良の方法が確立されているとは言い難い。さらに，レギュラフィルムとオルソフィルムの保存方法の違いによる濃度管理への影響，あるいはこれらの比較については，これまでほとんど報告されていない。本論文では，われわれは，レギュラフィルム，フジnew-RXとオルソフィルム，コニカSR-G，SR−VおよびSR-Hを用い，開封後，室温，冷蔵，冷凍の3種類の保存方法を採用した。われわれは，35週間3種類の保存方法で4種類 のフィルムのgross　fog，speed indexとaverage gradientへの影響を調査した。その結果レギュラフィルムは，3種類の保存方法による差が認められなかった。オルソフィルムでは，冷蔵・冷凍保存に大きな特性変動が認められた。その原因として，オルソフィルムは増感色素が結露に対して敏感に影響を受けたと考えられた。 en-copyright= kn-copyright= en-aut-name=OhnoSeiichiro en-aut-sei=Ohno en-aut-mei=Seiichiro kn-aut-name=大野誠一郎 kn-aut-sei=大野 kn-aut-mei=誠一郎 aut-affil-num=1 ORCID= en-aut-name=YoshidaAkira en-aut-sei=Yoshida en-aut-mei=Akira kn-aut-name=吉田彰 kn-aut-sei=吉田 kn-aut-mei=彰 aut-affil-num=2 ORCID= en-aut-name=InoueTatsuya en-aut-sei=Inoue en-aut-mei=Tatsuya kn-aut-name=井上龍也 kn-aut-sei=井上 kn-aut-mei=龍也 aut-affil-num=3 ORCID= en-aut-name=KobashiToshimi en-aut-sei=Kobashi en-aut-mei=Toshimi kn-aut-name=小橋利美 kn-aut-sei=小橋 kn-aut-mei=利美 aut-affil-num=4 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=5 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=広島県立保健福祉短期大学 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 en-keyword=自動現像機 (automatic processor) kn-keyword=自動現像機 (automatic processor) en-keyword=濃度管理 (density control) kn-keyword=濃度管理 (density control) en-keyword=フィルム保存 (film preservation) kn-keyword=フィルム保存 (film preservation) en-keyword=結露 (dew condensation) kn-keyword=結露 (dew condensation) END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=2 article-no= start-page=91 end-page=98 dt-received= dt-revised= dt-accepted= dt-pub-year=2000 dt-pub=20000324 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The influence of air attenuation in characteristic curve for mammographic screen-film system kn-title=マンモグラフィ用増感紙／フィルムシステムの特性曲線における空気減弱の影響 en-subtitle= kn-subtitle= en-abstract=It is necessary to take air attenuation into account when we use inverse square sensitometry to obtain characteristic curve for the mammographic screen-film system at low x-ray energies as used with the dedicated unit. Three kinds of the inverse square sensitometry approach of correcting by air attenuation obtained from effective energy, of correcting by exposure dosimetry and of using modified the technique of Bednarek were employed to investigated the influence of x-ray energy in the characteristic curves for the mammographic screen-film system. In addition, the inverse square sensitometry with the general radiographic unit was employed and the influence of x-ray high energy in the characteristic curves was also investigated for the same screeri-film system. Though characteristic curves and gradient curves of the new inverse square sensitometry were a little lower than the others in high-density region, the curves with three kinds of methods almost coincided. Maximum relative errors of average gradient and maximum gradient for modified the technique of Bednarek were found to be 2.7% and 0.2% among the others respectively. Moreover, maximum relative errors of gradient and maximum gradient for the inverse square sensitometry with the general radiographic unit were 2.7% and 1.5% among three kinds of methods with the dedicated unit respectively. It was considered that the characteristic curves for the mammographic screen-film　system were little influenced by x-ray energy and could be obtained only by correcting　air attenuation from above results. kn-abstract=マンモグラフィ専用装置を使用して，距離法で低エネルギー領域のX線におけるマンモグラフィ用増感紙／フィルムシステムの特性曲線を得るためには，空気滅弱の影響を考慮する必要がある。その影響について，実効エネルギーから空気減弱分を補正，照射線量測定による補正，Bednarek法を応用した新距離法の3種類の方法を使って検討した。さらに，一般撮影装置でも，マンモ用システムに対して距離法で特性曲線を作成し，エネルギ ーの変化による影響についても検討した。その結果，3方法の特性曲線およびグラディエント曲線は，新距離法が高濃度域でわずかにずれるもののほぼ一致した。新距離法に対する平均階調度，最大階調度の最大誤差は，2.7％，0.2％であり，一般撮影用装置の距離法と3方法との間では，一般撮影用装置の距離法に対して最大誤差は2.7％，1.5％であった。以上のことから，エネルギーの変化による特性曲線への影響はほとんどなく，低エネルギー領域での特性曲線は空気特配の補正を行うことのみで得られると考えられる。 en-copyright= kn-copyright= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=1 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=4 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 en-keyword=マンモグラフィ (mammography) kn-keyword=マンモグラフィ (mammography) en-keyword=低エネルギー領域 (low x-ray energy) kn-keyword=低エネルギー領域 (low x-ray energy) en-keyword=特性曲線 (characteristic curve) kn-keyword=特性曲線 (characteristic curve) en-keyword=距離法 (inverse square sensitometry) kn-keyword=距離法 (inverse square sensitometry) en-keyword=空気減弱 (air attenuation) kn-keyword=空気減弱 (air attenuation) END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue= article-no= start-page=7 end-page=13 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=19960229 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Physical Properties of Screen-Film Systems - New System for Chest Radiography - kn-title=増感紙フィルム系の物理特性 ―胸部用新システム― en-subtitle= kn-subtitle= en-abstract=The new three screen-film systems, Kodack INSIGHT system HC/IT-1, Fuji AD system HG-M/UR-1, and Konica EX system XG-S/ES-C for chest radiography were evaluated. In addition, the conventional system Fuji HR-4/Super HR-S was measured for comparison with new systems. The evaluation method is as follows. The image quality characteristics, speed, contrast, resolution and granularity were measured. The sensitivity and contrast were determined by measuring the MTF (modulation transfer function) and NCTF (normalized contrast transfer function). The granularity was estimated by measuring the Wiener spectrum. The speed of the new systems were improved by 22% to 73%. The dinsities at the maximum gradient value were shifted to high density (2.0-2.7). However, they had 10% to 30% less resolution. The other hand, the granularities were improved by 21% to 37% at 1.0 density. These results suggested that the emphasis of new systems was put on improving the image quality of mediastinum region, maintaining performance of the conventional system. kn-abstract=胸部専用の新しい増感紙／フィルムシステムについて物理的画質特性を測定し、従来のシステムと比較を行った。測定した新システムは、日本コダックのインサイトシステムからHC/IT-1、富士メディカルシステムのADシステムからHG-M/UR-1、コニカのEXシステムからXG-S/ES-C である。従来のシステムとして富士メディカルシステムのHR-4/Super HR-S を使用した。その結果、新システムは22〜73％感度は高く、特性曲線においては低濃度部を持ち上げ、最大コントラストは高濃度側にシフトしていた。空間周波数2cycles/mmで相対鮮鋭度を比較すると、新システムが10〜30％程度の低下となっていた。ノイズは、濃度1.0で新システムが35〜46％の減少となった。以上より、新システムは、縦隔部の濃度を上げ、粒状性の改善を重視した設計となっていることが分かった。 en-copyright= kn-copyright= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=1 ORCID= en-aut-name=YoshidaAkira en-aut-sei=Yoshida en-aut-mei=Akira kn-aut-name=吉田彰 kn-aut-sei=吉田 kn-aut-mei=彰 aut-affil-num=2 ORCID= en-aut-name=NakamuraNobue en-aut-sei=Nakamura en-aut-mei=Nobue kn-aut-name=中村伸枝 kn-aut-sei=中村 kn-aut-mei=伸枝 aut-affil-num=3 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=4 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=5 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=6 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=7 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=8 ORCID= en-aut-name=HondaMitsugi en-aut-sei=Honda en-aut-mei=Mitsugi kn-aut-name=本田貢 kn-aut-sei=本田 kn-aut-mei=貢 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=広島県立保健福祉短期大学部放射線技術科学科 affil-num=3 en-affil= kn-affil=岡山大学歯学部附属病院歯科放射線科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=増感紙フィルム系 (screen-film system) kn-keyword=増感紙フィルム系 (screen-film system) en-keyword=物理特性 (physical properties) kn-keyword=物理特性 (physical properties) en-keyword=感度 (speed (film sensitivity)) kn-keyword=感度 (speed (film sensitivity)) en-keyword=コントラスト (contrast) kn-keyword=コントラスト (contrast) en-keyword=鮮鋭度 (resolution) kn-keyword=鮮鋭度 (resolution) en-keyword=粒状性 (granularity) kn-keyword=粒状性 (granularity) END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue= article-no= start-page=15 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=19960229 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Clinical application of the contrast media containing soft drinks for the X-ray examination of the stomach kn-title=清涼飲料入り胃X線検査用造影剤の臨床応用 en-subtitle= kn-subtitle= en-abstract=Barium sulfate suspensions are disliked by many people. This is one of the obstacles to increase persons who consult doctors and to have medical examinations smoothly. We mixed soft drinks into the suspensions to improve this problem. As a result, they were popular among 64.2% people, there were not any clinical troubles that the suspensions did not stick to the mucous membrane of the stomach well, the peristalsis of the sotmach were promoted, and so on. These results suggest that the contrast media containing soft drinks is useful for the X-ray examinations of the stomach. kn-abstract=胃X線検査の被験者を増やし、検査を円滑に行う上で造影剤である硫酸バリウム懸濁液の飲みにくさが障害の一つとなっている。これを改善する目的で、懸濁液に市販の粉末清涼飲料を混入したところ、64.2％の人が通常のものよりも飲みやすいと答えた。臨床上も造影剤の付着が悪くなったり、胃の蠕動を促進する等の問題は生じず、有用であると考えられた。 en-copyright= kn-copyright= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=4 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=OkuraYasuhiko en-aut-sei=Okura en-aut-mei=Yasuhiko kn-aut-name=大倉保彦 kn-aut-sei=大倉 kn-aut-mei=保彦 aut-affil-num=7 ORCID= en-aut-name=NatsukawaKoichi en-aut-sei=Natsukawa en-aut-mei=Koichi kn-aut-name=夏川浩一 kn-aut-sei=夏川 kn-aut-mei=浩一 aut-affil-num=8 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=9 ORCID= en-aut-name=NobuharaEitaro en-aut-sei=Nobuhara en-aut-mei=Eitaro kn-aut-name=延原栄太朗 kn-aut-sei=延原 kn-aut-mei=栄太朗 aut-affil-num=10 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=11 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=12 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=13 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=(財)倉敷成人病センター南くらしき病院放射線部 affil-num=8 en-affil= kn-affil=(財)倉敷成人病センター南くらしき病院放射線部 affil-num=9 en-affil= kn-affil=(財)倉敷成人病センター南くらしき病院放射線部 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=11 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=12 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=13 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=造影剤 (contrast media) kn-keyword=造影剤 (contrast media) en-keyword=硫酸バリウム (barium sulfate suspension) kn-keyword=硫酸バリウム (barium sulfate suspension) en-keyword=清涼飲料 (soft drinks) kn-keyword=清涼飲料 (soft drinks) en-keyword=消化管検査 (barium examination) kn-keyword=消化管検査 (barium examination) END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue= article-no= start-page=1 end-page=6 dt-received= dt-revised= dt-accepted= dt-pub-year=1991 dt-pub=19910325 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Total Skin Electron Beam Therapy kn-title=電子線全身照射法の検討 en-subtitle= kn-subtitle= en-abstract=皮膚に限局した一連の末梢型T細胞リンパ腫は放射線に対する感受性が高く、電子線治療の適応となる疾患である。こららの疾患は一般的に全身の皮膚に浸潤するため、治療に際してはTarget Volumeの深さに合わせた最小限のエネルギーで全身隈なく照射する必要がある。筆者等は最近臨床で遭遇した菌状息肉症の患者を治療するため、その患者に合った物理的なデータを測定した。照射野の拡大には振子照射法を用い、エネルギー低減方法は装置に装備されている鉛のスキャタラーを低原子番号で、しかも加工のしやすい塩化Vinyl板に交換する方法を工夫した。データとして治療効果、副作用に関係する線量率、エネルギー、及び照射野内平坦度について測定した結果、距離が長くなる関係から線量率が低下する全身照射法の欠点は解消できなかったが、エネルギー及び平坦度については使用可能なデータを得ることができた。 kn-abstract=The peripherally T-cell lymphoma; Mycosis fungoides etc, has the good radiation sensitivity, and has been adapted for total skin electron beam therapy. In this study the pendular irradiation method was used for the purpose of total skin electron beam therapy in Mycosis fungoides, and physical data on the radiation field and the electron beam energy were useful clinically. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=2 ORCID= en-aut-name=MiyakeHideaki en-aut-sei=Miyake en-aut-mei=Hideaki kn-aut-name=三宅英昭 kn-aut-sei=三宅 kn-aut-mei=英昭 aut-affil-num=3 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=4 ORCID= en-aut-name=MimuraSeiichi en-aut-sei=Mimura en-aut-mei=Seiichi kn-aut-name=三村誠一 kn-aut-sei=三村 kn-aut-mei=誠一 aut-affil-num=5 ORCID= en-aut-name=EgusaTomomi en-aut-sei=Egusa en-aut-mei=Tomomi kn-aut-name=江草具視 kn-aut-sei=江草 kn-aut-mei=具視 aut-affil-num=6 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=7 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=8 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=9 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=10 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=電子線全身照射法 kn-keyword=電子線全身照射法 en-keyword=菌状息肉症 kn-keyword=菌状息肉症 en-keyword=全身性皮膚疾患 kn-keyword=全身性皮膚疾患 END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=23 end-page=27 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=19960930 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Basic properies of beam flatness analyzer (THEBES 7000) kn-title=ビームフラットネスアナライザ（7000型 THEBES)の基礎的性能の検討 en-subtitle= kn-subtitle= en-abstract=Lrradiation, which is one of the effective therapies to Cancer, is required to be accurate within ±5% of the tolerable error of the total system. An accurate dose has to be irradiated accurately at a target volume. For that Quality Control of the irradiation equipment is cotinually important. As the measurement of Beam Flatness is an important item, it is obligated to be measured once a week. In this paper as we have an opportunity to use a Beam Flatness Analyzer sold on a corporation of medical instrument, we experiment about the difference of sensitivity of mutual Chamber which is its basic property, the reproducibility of the measured score, and the minimum value of measuralbe dose. We find that the difference in every item is so small that its data is very reliable in a daily use. kn-abstract=癌の有力な治療法の1つである放射線治療はシステム全体の許容誤差が±5％と、正確な治療が要求されている。正確な線量を正確な場所に照射されなければならない。そのためには日頃から照射装置のQuality Control が重要である。Beam平坦度の測定はその中でも、重要な項目で1／6月の測定頻度が勧告されている。今回、市販のBeam Flatness Analyzer (7000型 THEBES) を使用する機会を得たので、その基礎的性能であるChamber 相互の感度のちがい、測定値の再現性、識別可能な最小線量について実験を行った。各項目とも誤差が非常に少なく、日常の使用に際してそのデータは十分信頼できるものであることがわかった。 en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=OguriNobuhiro en-aut-sei=Oguri en-aut-mei=Nobuhiro kn-aut-name=小栗宣博 kn-aut-sei=小栗 kn-aut-mei=宣博 aut-affil-num=2 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=3 ORCID= en-aut-name=OkawaYoshihiro en-aut-sei=Okawa en-aut-mei=Yoshihiro kn-aut-name=大川義弘 kn-aut-sei=大川 kn-aut-mei=義弘 aut-affil-num=4 ORCID= en-aut-name=WakasaHiroyuki en-aut-sei=Wakasa en-aut-mei=Hiroyuki kn-aut-name=若狭弘之 kn-aut-sei=若狭 kn-aut-mei=弘之 aut-affil-num=5 ORCID= en-aut-name=NagayaIsao en-aut-sei=Nagaya en-aut-mei=Isao kn-aut-name=永谷伊佐雄 kn-aut-sei=永谷 kn-aut-mei=伊佐雄 aut-affil-num=6 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=7 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=8 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=9 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=10 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=11 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=12 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=13 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=14 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=10 en-affil= kn-affil=三井病院放射線科 affil-num=11 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=12 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=13 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=14 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=放射線治療 (radiation therapy) kn-keyword=放射線治療 (radiation therapy) en-keyword=ビーム平坦度 (beam flatness) kn-keyword=ビーム平坦度 (beam flatness) en-keyword=性能評価 (valuation of property) kn-keyword=性能評価 (valuation of property) en-keyword=電子加速器 (electron accelerator) kn-keyword=電子加速器 (electron accelerator) END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue= article-no= start-page=63 end-page=71 dt-received= dt-revised= dt-accepted= dt-pub-year=1992 dt-pub=19920205 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Dose Distributions at Standard Diagnostic X-Ray Energy kn-title=撮影X線領域での線量分布 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Exposure dose has been indicated by surface dose or transit dose, but they could not indicate dose distributions inside the body. Modulex as the radiation therapy planning system was used for dose distributions at standard diagnostic X-ray energy. X-ray is low energy X-ray at standard diagnostic radiography, so alterations of the energy and the scattering dose distribution by absorbers are quite different from those at high energy X-rays. Mix-DP was put to the homogeneous tissue use, then Bone equivalent phantom or Lung equivalent phanton was put to the inhomogeneous tissue use. Density correction factors for inhomogeneous phantoms were gotten by the calculation of the water equivalent thickness. In Bone the inhomogeneous correction depended strongly on the bone thickness. In Lung it was in need of one density correction factor and the scattering correction method for the decrease of the back scattering. The calculated dose distributions by Modulex agreed with measured data when each correction was carried out, and it was indicated that those data apply to inclinical situations. en-copyright= kn-copyright= en-aut-name=MiyakeHideaki en-aut-sei=Miyake en-aut-mei=Hideaki kn-aut-name=三宅英昭 kn-aut-sei=三宅 kn-aut-mei=英昭 aut-affil-num=1 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=2 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=3 ORCID= en-aut-name=KadohisaShigefumi en-aut-sei=Kadohisa en-aut-mei=Shigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=4 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=5 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=6 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=7 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=Exposure Dose kn-keyword=Exposure Dose en-keyword=Dose Distribution kn-keyword=Dose Distribution en-keyword=Radiation Therapy Planning System kn-keyword=Radiation Therapy Planning System en-keyword=Density Correction kn-keyword=Density Correction en-keyword=Scattering Correction kn-keyword=Scattering Correction END start-ver=1.4 cd-journal=joma no-vol=3 cd-vols= no-issue= article-no= start-page=13 end-page=18 dt-received= dt-revised= dt-accepted= dt-pub-year=1993 dt-pub=19930131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Photon background caused by the reduction of the electron beam energy - Materials of scattering foil - kn-title=電子線エネルギー低減におけるX線混入率の検討 ―スキャタリングホイルの材質について― en-subtitle= kn-subtitle= en-abstract= kn-abstract=The total skin electron beam therapy has been one of the clinical treatment for peripherally T-cell lymphoma; Mycosis fungoides, adult T-cell lymphoma, and so on. The crucial points in this treatment are not only having an optimum energy level of electron beam for a target volume (a tissue) but also keeping the photon back ground low. It is not easy to regulate those points by the control panel, however, for the equipment that is conventinally used for electron beam, theoretically, is to exchange lead (Pb), which is ordinarily used, to a low atomic number material as a scattering foil. We examined several different kinds and / or various thickness as a scattering foil material that can make the electron beam lower without an increase of the contaminant as X-ray. We hereby reported the results, and strongly suggested the following two materials in use; acrylic plate, carbon board, and so on, which are easily available and worked, would be practically useful for the total skin electron beam therapy. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=MimuraSeiiti en-aut-sei=Mimura en-aut-mei=Seiiti kn-aut-name=三村誠一 kn-aut-sei=三村 kn-aut-mei=誠一 aut-affil-num=2 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=3 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=4 ORCID= en-aut-name=MiyakeHideaki en-aut-sei=Miyake en-aut-mei=Hideaki kn-aut-name=三宅英昭 kn-aut-sei=三宅 kn-aut-mei=英昭 aut-affil-num=5 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=6 ORCID= en-aut-name=EgusaTomomi en-aut-sei=Egusa en-aut-mei=Tomomi kn-aut-name=江草具視 kn-aut-sei=江草 kn-aut-mei=具視 aut-affil-num=7 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=10 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=11 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=10 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=11 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 en-keyword=電子線エネルギー kn-keyword=電子線エネルギー en-keyword=X線混入率 kn-keyword=X線混入率 en-keyword=電子線全身照射法 kn-keyword=電子線全身照射法 en-keyword=スキャタリングホイル kn-keyword=スキャタリングホイル END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue= article-no= start-page=57 end-page=60 dt-received= dt-revised= dt-accepted= dt-pub-year=1994 dt-pub=19940131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Estimation of balium preparations with high density and low viscosity kn-title=高濃度低粘性硫酸バリウム製剤の評価 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper we compared the balium preparations having high density and low viscosity (BP-HDLV) with those currently in use. We adopted the stomaches of pigs and the new phantom manufactured by ourselves. We especialy noted the quality of the contrast. The results indicate that BP-HDLV do not always make high contrast. The contrast is related to fluidity besides density. The fluidity of BP-HDLV should be improved. In adition, it costs much to increase content of balium. Therefore, we can not find out positive significance to use these BP-HDLV. en-copyright= kn-copyright= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=1 ORCID= en-aut-name=KobashiTakao en-aut-sei=Kobashi en-aut-mei=Takao kn-aut-name=小橋高郎 kn-aut-sei=小橋 kn-aut-mei=高郎 aut-affil-num=2 ORCID= en-aut-name=OgasawaraMitsuo en-aut-sei=Ogasawara en-aut-mei=Mitsuo kn-aut-name=小笠原光男 kn-aut-sei=小笠原 kn-aut-mei=光男 aut-affil-num=3 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=4 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=5 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=6 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=倉敷成人病センター放射線部 affil-num=3 en-affil= kn-affil=倉敷成人病センター放射線部 affil-num=4 en-affil= kn-affil=倉敷成人病センター放射線部 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 en-keyword=contrast medium kn-keyword=contrast medium en-keyword=balium kn-keyword=balium en-keyword=density kn-keyword=density en-keyword=viscosity kn-keyword=viscosity en-keyword=fluidity kn-keyword=fluidity END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue= article-no= start-page=69 end-page=73 dt-received= dt-revised= dt-accepted= dt-pub-year=1994 dt-pub=19940131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Dosimetry in Radiography kn-title=X線撮影領域における線量測定　―撮影条件と臓器の被曝― en-subtitle= kn-subtitle= en-abstract= kn-abstract=Utilization of radiation in medical treatment is increasing more and more ; consequently, It becomes more important to estimate exposure dose correctly. Altough there are many reports about exposue dose for patients, most of them merely describe the results of the measurements by parts of the body. Exposure dose differs with equipment, instruments, screen-firm system, contition of radiography, and so on. This paper describes the relation between skin dose and contitions of radiography, and also shows the result of measurement of "TPR" which needs to know the absorbed dose of each organ. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=2 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=3 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=4 ORCID= en-aut-name=SibuyaKoichi en-aut-sei=Sibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=5 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=6 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=7 ORCID= en-aut-name=UnoHirohumi en-aut-sei=Uno en-aut-mei=Hirohumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=8 ORCID= en-aut-name=TakataYoshiaki en-aut-sei=Takata en-aut-mei=Yoshiaki kn-aut-name=高田義明 kn-aut-sei=高田 kn-aut-mei=義明 aut-affil-num=9 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=10 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=11 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=12 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=13 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=財団法人中国労働衛生協会 affil-num=10 en-affil= kn-affil=財団法人倉敷成人病センター affil-num=11 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=12 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=13 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=線量測定 kn-keyword=線量測定 en-keyword=低エネルギー kn-keyword=低エネルギー en-keyword=被曝 kn-keyword=被曝 END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue= article-no= start-page=75 end-page=82 dt-received= dt-revised= dt-accepted= dt-pub-year=1994 dt-pub=19940131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Analysis of Tempormandibular Joint by Image Processing -Discrimination of Condylar Position- kn-title=画像処理による顎関節の解析 ―下顎頭位の判別― en-subtitle= kn-subtitle= en-abstract= kn-abstract=Tomography is clinically useful in the diagnosis of the temporomandibular joint (TMJ) syndrome. The TMJ is formed by the condyle and the glenoid fossa, and there exists TMJ space between them. Image processing was employed in the present study, and the reference points of the condyle and the glenoid fossa were determined from the tomogram. Subsequently, the TMJ space was measured automatically in the image analysis. The TMJs of 98 patients were examined practically and the characteristics of each result were studied. There is a possibility of discriminating an abnormal condylar position from a normal one by making use of the TMJ space and the distance between two reference points. en-copyright= kn-copyright= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=1 ORCID= en-aut-name=GotouSachiko en-aut-sei=Gotou en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=2 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=3 ORCID= en-aut-name=NakamuraNobue en-aut-sei=Nakamura en-aut-mei=Nobue kn-aut-name=中村伸枝 kn-aut-sei=中村 kn-aut-mei=伸枝 aut-affil-num=4 ORCID= en-aut-name=ShibuyaKouichi en-aut-sei=Shibuya en-aut-mei=Kouichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=5 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=6 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=7 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学歯学部附属病院歯科放射線科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=Condylar Position kn-keyword=Condylar Position en-keyword=Temporomandibular Joint Space kn-keyword=Temporomandibular Joint Space en-keyword=Image Processing kn-keyword=Image Processing en-keyword=Tomogram kn-keyword=Tomogram en-keyword=Discrimination kn-keyword=Discrimination END start-ver=1.4 cd-journal=joma no-vol=5 cd-vols= no-issue= article-no= start-page=99 end-page=103 dt-received= dt-revised= dt-accepted= dt-pub-year=1995 dt-pub=19950131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Statistics and analysis on the troubles of linear accelarator. kn-title=リニアック（東芝LMR-15A）の故障の統計と分析 en-subtitle= kn-subtitle= en-abstract=The Accuracy of radiation dose exposed the rigidly selected target volume is one of significant factors that have an influence upon the efficiency of treatment in the radiotherapy techniques. Therefore, it is necessary to daily maintain and check irradiation equipment for the radiotherapy. For the radiotherapy, the electron linear accelerator, Toshiba LMR-15A, had worked from 1976 to 1991 in Okayama University Hospital. On this study, all records regarding the operating condition were analyzed concerning parts of trouble, life of a tube and operating efficiency for these sixteen years. In a high frequency of trouble, an accelerating structure ranked first, followed by a collimator and a high voltage generator. The operating efficiency was 95% or greater. This report should be helpful to maintain and check a same model in other hosptals. kn-abstract=放射線治療の成否は厳密に設定されたTarget Volumeに如何に正確な線量を照射するかによって決まる。治療術式の過程において、最も大きな誤差を生む要因は照射機器である。誤差の少ない治療を目指す第一歩は機器を正確に作動させることであり、日常からの保守点検および整備が必要である。今回、岡山大学附属病院で1976年から1991年までに使用されたリニアックについて、その故障状況を集計し、部位別故障件数、管球の寿命、稼動率などを分析検討した。その結果、故障件数では設置され稼動を始めた1976年、装置の老朽化が進んだ1990、1991年に多かった。部位別集計では加速部に圧倒的に多く、次いで照射口、高圧部の順であった。稼動率は設置年および1987年を除いてはいずれも96％以上とよい結果であった。この結果は全国に稼動している同型の装置の保守点検に役立つものと考える。 en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=SibuyaKoichi en-aut-sei=Sibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=4 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=5 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=6 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=7 ORCID= en-aut-name=UnoHirofumi en-aut-sei=Uno en-aut-mei=Hirofumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=8 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=9 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=10 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=放射線治療 (radiotherapy) kn-keyword=放射線治療 (radiotherapy) en-keyword=直線加速器 (linear accelarator) kn-keyword=直線加速器 (linear accelarator) en-keyword=故障 (troubles of radiation system) kn-keyword=故障 (troubles of radiation system) END start-ver=1.4 cd-journal=joma no-vol=5 cd-vols= no-issue= article-no= start-page=111 end-page=114 dt-received= dt-revised= dt-accepted= dt-pub-year=1995 dt-pub=19950131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The contrast media containing soft drinks for X-ray examination of the stomach kn-title=清涼飲料入り胃X線検査用造影剤 en-subtitle= kn-subtitle= en-abstract=Barium sulfate suspensions are disliked to drink by many people. That is one of the obstacles to increse person who consult doctors and to have medical examinations smoothly. We mixed soft drinks into the suspensions to improve this problem. As a result they were popular among 72.1% people. We need to study about these suspensions further, adding the clinical matters. kn-abstract=胃検診の受診者を増やし、検査を円滑に行う上で、造影剤である硫酸バリウム懸濁液の飲みにくさが障害の一つとなっている。これを改善する試みとして、懸濁液に市販の粉末清涼飲料を混入し検討したところ72.1％の人から通常のものよりも飲みやすいという回答を得た。今後、臨床的な検討を加えながら、さらに創意工夫していく必要がある。 en-copyright= kn-copyright= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=4 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=5 ORCID= en-aut-name=OkuraYasuhiko en-aut-sei=Okura en-aut-mei=Yasuhiko kn-aut-name=大倉保彦 kn-aut-sei=大倉 kn-aut-mei=保彦 aut-affil-num=6 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=7 ORCID= en-aut-name=NobuharaEitaro en-aut-sei=Nobuhara en-aut-mei=Eitaro kn-aut-name=延原栄太朗 kn-aut-sei=延原 kn-aut-mei=栄太朗 aut-affil-num=8 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=(財)倉敷成人病センター放射線部 affil-num=7 en-affil= kn-affil=(財)倉敷成人病センター放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=造影剤 (contrast media) kn-keyword=造影剤 (contrast media) en-keyword=硫酸バリウム製剤 (barium sulfate suspension) kn-keyword=硫酸バリウム製剤 (barium sulfate suspension) en-keyword=粘度 (viscosity) kn-keyword=粘度 (viscosity) en-keyword=飲みやすさ (easiness to drink) kn-keyword=飲みやすさ (easiness to drink) END start-ver=1.4 cd-journal=joma no-vol=107 cd-vols= no-issue=1-6 article-no= start-page=1 end-page=6 dt-received= dt-revised= dt-accepted= dt-pub-year=1995 dt-pub=19950630 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Contrast characteristics of barium preparations and the timing of exposure kn-title=胃X線検査用影剤のコントラスト特性と撮影タイミングについて en-subtitle= kn-subtitle= en-abstract= kn-abstract=We studied the relationship between the contrast characteristics of barium suspension and timing of exposure. We poured several kinds of barium preparations on the phantom manufactured by ourselves, and took X-ray pictures continuously by a DSA system. We analyzed each of the characteris-tics of the contrast. The time which was reguired for the contrast to reach the peak (Contrast Peak Time ; CPT) was unrelated with the kind of barium preparations used. It depended on the viscosity of the contrast media and the angle of the phantom. Viscosity was correlated with CPT. CPT was 3 to 6 seconds at an angle of 15 degrees, and 1.5 to 4 seconds at an angle of 30 degrees. We can refer to these findings to decide the density of barium suspension and to get timely exposure. en-copyright= kn-copyright= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=4 ORCID= en-aut-name=Kobashitakao en-aut-sei=Kobashi en-aut-mei=takao kn-aut-name=小橋高郎 kn-aut-sei=小橋 kn-aut-mei=高郎 aut-affil-num=5 ORCID= en-aut-name=OkuraYasuhiko en-aut-sei=Okura en-aut-mei=Yasuhiko kn-aut-name=大倉保彦 kn-aut-sei=大倉 kn-aut-mei=保彦 aut-affil-num=6 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=7 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=5 en-affil= kn-affil=(財)倉敷成人病センター放射線部 affil-num=6 en-affil= kn-affil=(財)倉敷成人病センター放射線部 affil-num=7 en-affil= kn-affil=(財)倉敷成人病センター放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 en-keyword=contrast medium kn-keyword=contrast medium en-keyword=barium sulfate kn-keyword=barium sulfate en-keyword=dencity kn-keyword=dencity en-keyword=viscosity kn-keyword=viscosity END start-ver=1.4 cd-journal=joma no-vol=102 cd-vols= no-issue=1-2 article-no= start-page=217 end-page=225 dt-received= dt-revised= dt-accepted= dt-pub-year=1990 dt-pub=199002 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Radiant energy attenuation in electron beam therapy kn-title=電子線治療時におけるエネルギー低減方法に関する検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The declerator and bolus, which reduce radiant energy in electron beam radiotherapy, were investigated with respect to the interrelation between their quality of material, thickness and position, and the mean energy anf depth-dose rate curve pattern. The data obtained indicated that an acryl decelerator fitted to the tube aperture had the disadvantage of entailing bremsstrahlung x-ray intervention as well as increased depth dose. An elastomeric bolus placed on the phantom surface, however, resulted in an increase surface dose and minmal x-ray intervention. When radiation was performed with the phantom surface held apart from the bolus, a build-up phenomenon occurred on the phantom surface with a consequent diminution of surface dose. It was concluded that a bolus is more effective than a decelerator fitted to the tube aperture for attenuation of radiant energy. It is more advantageus to irradite with the bolus in contact with the skin in cases in which the target is localized in the superficial layer of the skin, and with the bolus apart from the skin in cases in which the target is situated deeper below the skin. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=YamadaToshiharu en-aut-sei=Yamada en-aut-mei=Toshiharu kn-aut-name=山田俊治 kn-aut-sei=山田 kn-aut-mei=俊治 aut-affil-num=2 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=3 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=4 ORCID= en-aut-name=OhkawaYoshihiro en-aut-sei=Ohkawa en-aut-mei=Yoshihiro kn-aut-name=大川義弘 kn-aut-sei=大川 kn-aut-mei=義弘 aut-affil-num=5 ORCID= en-aut-name=InamuraKenji en-aut-sei=Inamura en-aut-mei=Kenji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=6 ORCID= en-aut-name=OguriNobuhiro en-aut-sei=Oguri en-aut-mei=Nobuhiro kn-aut-name=小栗宜博 kn-aut-sei=小栗 kn-aut-mei=宜博 aut-affil-num=7 ORCID= en-aut-name=NagayaIsao en-aut-sei=Nagaya en-aut-mei=Isao kn-aut-name=永谷伊佐雄 kn-aut-sei=永谷 kn-aut-mei=伊佐雄 aut-affil-num=8 ORCID= en-aut-name=NoriyasuToshiaki en-aut-sei=Noriyasu en-aut-mei=Toshiaki kn-aut-name=則安俊昭 kn-aut-sei=則安 kn-aut-mei=俊昭 aut-affil-num=9 ORCID= en-aut-name=OkazakiYoshio en-aut-sei=Okazaki en-aut-mei=Yoshio kn-aut-name=岡崎良夫 kn-aut-sei=岡崎 kn-aut-mei=良夫 aut-affil-num=10 ORCID= en-aut-name=InoueNobuhiro en-aut-sei=Inoue en-aut-mei=Nobuhiro kn-aut-name=井上信浩 kn-aut-sei=井上 kn-aut-mei=信浩 aut-affil-num=11 ORCID= en-aut-name=TogamiIzumi en-aut-sei=Togami en-aut-mei=Izumi kn-aut-name=戸上泉 kn-aut-sei=戸上 kn-aut-mei=泉 aut-affil-num=12 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=13 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=10 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=11 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=12 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=13 en-affil= kn-affil=岡山大学医学部放射線医学教室 en-keyword=電子線 kn-keyword=電子線 en-keyword=エネルギー低減 kn-keyword=エネルギー低減 en-keyword=浅在性腫瘍 kn-keyword=浅在性腫瘍 en-keyword=決定臓器の保護 kn-keyword=決定臓器の保護 END start-ver=1.4 cd-journal=joma no-vol=14 cd-vols= no-issue=1 article-no= start-page=15 end-page=22 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=20031225 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A study on the scattering exposure dose in radiotherapy. kn-title=放射線治療時の治療患部外散乱被曝線量に関する研究 en-subtitle= kn-subtitle= en-abstract=In modern medicine, radiotherapy has proved indispensable in the treatment of cancer. However. radiation exposure is a health hazard. and is thus strictly regulated. In the past, incidental exposure was not considered to pose a considerable risk, and because radiotherapy was an effective treatment for cancer and because the possibility of the long-term survival was generally poor, the prevalence of radiation injury was thought to be low. In recent years, however, more patients are making complete recoveries, and it is believed that long-term survival is possible with future radiotherapy techniques. There is no threshold for the stochastic effects of radiation exposure, and thus such effects may be detected even at low levels. In the present study, we measured the radiation exposure due to scattered rays from the patient, incidental radiation levels in the radiotherapy room, and levels of neutron radiation. which is a problem when high-energy X-ray radiotherapy systems are used. The results showed that exposure due to scattered rays and incidental levels in the radiotherapy room cannot be dismissed. and that further investigation is warranted. As for neutron radiation, dosages were below those that are known to influence the human body, but regular measurement is necessary because it may induce radioactivity in otherwise benign equipment. In addition, a protective apron had no effect on the exposure due to scattered rays in the radiotherapy room. kn-abstract=現代の医療のなかで癌治療において不可欠な存在となった放射線治療｡一方,放射線被曝はたとえわずかであってもリスクが伴い,厳しく規制されている｡ただし医療被曝はこの限りになく,過去においては癌患者に放射線治療をおこなう際の患部以外の被曝についてはあまり問題視されなかった｡これには癌の治療という前提に加え,長期生存の可能性が低く,存命中に晩発障害が発生することが低いと考えられていたからである｡しかし,集学的治療が確立した今後の放射線治療においては完治する放射線治療患者が多くなり,治癒後の余命が長くなることが予測される｡放射線被曝による確率的影響は閾値がなく,影響は当然現れるであろう｡そこで,放射線治療をおこなう際の患者の散乱線被曝線量,治療室内散乱線量,さらに高エネルギー放射線発生装置を取り扱うときに問題となっている中性子を測定した｡その結果,測定線量は治療患部外被曝,室内散乱線量ともに無視できない量であることがわかった｡中性子については,人体に影響がある線量は検出されなかったが,中性子の存在は室内物品の放射化の可能性を示唆するもので定期的な測定管理が必要である｡また,]線撮影室用の防護衣による散乱線被曝の低減効果は放射線治療室では無意味であった｡ en-copyright= kn-copyright= en-aut-name=KawabeAtsushi en-aut-sei=Kawabe en-aut-mei=Atsushi kn-aut-name=川辺睦 kn-aut-sei=川辺 kn-aut-mei=睦 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=KobashiKazuki en-aut-sei=Kobashi en-aut-mei=Kazuki kn-aut-name=小橋一輝 kn-aut-sei=小橋 kn-aut-mei=一輝 aut-affil-num=3 ORCID= en-aut-name=YasumuraNaoki en-aut-sei=Yasumura en-aut-mei=Naoki kn-aut-name=安村直樹 kn-aut-sei=安村 kn-aut-mei=直樹 aut-affil-num=4 ORCID= en-aut-name=YamashitaTakahiro en-aut-sei=Yamashita en-aut-mei=Takahiro kn-aut-name=山下剛央 kn-aut-sei=山下 kn-aut-mei=剛央 aut-affil-num=5 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=6 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=7 ORCID= en-aut-name=ShibuyaKouichi en-aut-sei=Shibuya en-aut-mei=Kouichi kn-aut-name=澁谷光一 kn-aut-sei=澁谷 kn-aut-mei=光一 aut-affil-num=8 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学大学院保健学研究科保健学専攻修士課程 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=兵庫県立淡路病院 affil-num=4 en-affil= kn-affil=津山中央病院 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻第一期生 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=7 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=8 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=9 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 en-keyword=散乱線被曝 (Exposure of scattered rays) kn-keyword=散乱線被曝 (Exposure of scattered rays) en-keyword=中性子 (Neutron) kn-keyword=中性子 (Neutron) en-keyword=放射線治療 (Radiotherapy) kn-keyword=放射線治療 (Radiotherapy) en-keyword=確率的影響 (Stochastic effect) kn-keyword=確率的影響 (Stochastic effect) END start-ver=1.4 cd-journal=joma no-vol=14 cd-vols= no-issue=1 article-no= start-page=23 end-page=29 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=20031225 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Characteristic of GAFCHROMIC XR TYPE T dosimetry film kn-title=線量測定用GAFCHROMIC XR TYPE Tの特性 en-subtitle= kn-subtitle= en-abstract=In recent years, interventional radiology (IVR) using which uses prolomged fluoroscopy has been performed frequently in clinical radiology. Also, reports of radiation skin injuries whose symptoms occur after IVR has been also increasing. These symptoms will become worse if the radiation induced skin injuries are caused by doses which are above the designated threshold, and the grade of injuries are dependent on dose. Therefore, it is important that patient skin dose is measured correctly. But when perfoming IVR, irradiation is complex pricedure, and there is a measurement error with an unfixed source-to-skin distance. So. in this paper, characteristics of GAFCHROMIC XR TYPE T (which are film for low energy X-rays) are performed. Then, they are decided whether the application to the skin surface incidence dose measurement whoud be posible. From these results usefull data can be obtainned; for exanmpe film characteristics, energy factors and stability of sensivility. kn-abstract=医療の高度化に伴い,近年では長時間の]線透視を行うInterventional Radiology(IVR)手技が頻繁に行われ,副作用としての難治性放射線皮膚障害例の報告が増加している｡確定的影響である放射線皮膚障害はしきい値を超えると発症し,線量に依存して障害の程度が重篤となるため,患者被曝線量の測定が重要である｡しかし,IVRでは照射部位が多彩で,焦点-皮膚間距離が不安定なため,その測定方法は確立されていない｡本研究では,近年IVR等低エネルギー線量測定用フイルムとして開発されたCAFCHROMIC XR TYPE T について性能評価を行い,患者皮膚入射面の被曝線量測定への応用の可能性について検討した｡その結果,線量特性,線質特性,ネット値の安定性に良好な特性を示し,臨床に使用可能であったので報告する｡ en-copyright= kn-copyright= en-aut-name=KubotsuMariko en-aut-sei=Kubotsu en-aut-mei=Mariko kn-aut-name=窪津真理子 kn-aut-sei=窪津 kn-aut-mei=真理子 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=UjifukuAyako en-aut-sei=Ujifuku en-aut-mei=Ayako kn-aut-name=氏福亜矢子 kn-aut-sei=氏福 kn-aut-mei=亜矢子 aut-affil-num=3 ORCID= en-aut-name=TaniguchiYukiko en-aut-sei=Taniguchi en-aut-mei=Yukiko kn-aut-name=谷口友季子 kn-aut-sei=谷口 kn-aut-mei=友季子 aut-affil-num=4 ORCID= en-aut-name=HachiyaMiho en-aut-sei=Hachiya en-aut-mei=Miho kn-aut-name=八谷美穂 kn-aut-sei=八谷 kn-aut-mei=美穂 aut-affil-num=5 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=6 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=7 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=8 ORCID= en-aut-name=AoyamaHideki en-aut-sei=Aoyama en-aut-mei=Hideki kn-aut-name=青山英樹 kn-aut-sei=青山 kn-aut-mei=英樹 aut-affil-num=9 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=10 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=11 ORCID= en-aut-name=WatanabeToshimitsu en-aut-sei=Watanabe en-aut-mei=Toshimitsu kn-aut-name=渡邉敏充 kn-aut-sei=渡邉 kn-aut-mei=敏充 aut-affil-num=12 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=13 ORCID= affil-num=1 en-affil= kn-affil=真備中央病院 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=岡山大学保健科学研究科保健学専攻修士課程 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻第一期生 affil-num=5 en-affil= kn-affil=福岡徳州会病院 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=7 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=8 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=9 en-affil= kn-affil=岡山大学医学部･歯学部附属病院中央放射線部 affil-num=10 en-affil= kn-affil=岡山大学医学部･歯学部附属病院中央放射線部 affil-num=11 en-affil= kn-affil=岡山大学医学部･歯学部附属病院中央放射線部 affil-num=12 en-affil= kn-affil=真備中央病院 affil-num=13 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 en-keyword=患者被爆線量 (Patient Exposure dose) kn-keyword=患者被爆線量 (Patient Exposure dose) en-keyword=GAFCHROMIC XR TYPE T kn-keyword=GAFCHROMIC XR TYPE T en-keyword=Radiochromic film kn-keyword=Radiochromic film en-keyword=Interventional Radiology (IVR) kn-keyword=Interventional Radiology (IVR) en-keyword=測定精度 (Radiation dosimetry) kn-keyword=測定精度 (Radiation dosimetry) END start-ver=1.4 cd-journal=joma no-vol=13 cd-vols= no-issue=1 article-no= start-page=25 end-page=36 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20021225 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Recognition of the "team medical-care" in medical field. kn-title=医療現場における｢チーム医療｣の認識 ―アンケート調査結果から― en-subtitle= kn-subtitle= en-abstract=Recently, the "team medical-care" has been received increasing attention in medical field. Therefore we have to develop a clear understanding of "team medical-care". The purpose of this study is to investigate things regarded as "team medical-care" by co-medical, recognition of other category of license, the advantages of "team medical-care" and recognition against the "team medical-care" by different category of license. Total 652 nurses, clinical radiological technologists and clinical laboratory technologists who are working at 8 hospitals in Okayama prefecture were examined by using questionnaire and 470 members (72.1%) responded to it. They were nurses 207 (44.0%), clinical radiological technologists 91 (19.4%), clinical laboratory technologists 172 (36.6%). Majority of respondents recognized that the medical conference consisted of different category of license promoted the "team medical-care", and ninety percent of participants prompted more frequent medical conference. In both by category of license and years of experience, they regarded doctor, nurse, physical therapist and occupational therapist as the menber of the "team medical-care" at high rate. The respondences which have over 15 years of experience regarded all category of license as the menber of the "team medical-care", while the respondences which have less than 10 to 14 years of experience showed disperision of the recongnition. The advantages of "team medical-care" were highly perceived as "patient-centered medical care" by all category of license. kn-abstract=チーム医療に対して高い関心が寄せられていることから,チーム医療として認識される具体的な事柄や各職種に対する認識,その利点や職種間の認識の違いなどを明らかにする目的で,岡山県内の病院の看護師,診療放射線技師,臨床検査技師,計652名に対してアンケート調査を行った｡有効回答者数470名で,その内訳は看護師207名,診療放射線技師91名,臨床検査技師172名であった｡結果はチーム医療と認識される具体的な事柄については,異業種間カンファレンスがチーム医療を促進する事柄として認識されているが,整備･実施されていないことがうかがえた｡各職種に対する認識については,職種別･経験年数別にみても,医師,看護師,理学･作業療法士はチーム医療のメンバーとして認識されている割合が高かった｡また,経験年数別では,10〜14年の人までは統計上ややばらつきがみられるが,経験年数15年以上の人はあらゆる職種をチーム医療のメンバーであると考え,その重要性を認識していることがわかった｡チーム医療の利点については,どの職種も共通して｢患者中心の医療｣と考えている割合が高かった｡ en-copyright= kn-copyright= en-aut-name=MitsuiAkemi en-aut-sei=Mitsui en-aut-mei=Akemi kn-aut-name=三井明美 kn-aut-sei=三井 kn-aut-mei=明美 aut-affil-num=1 ORCID= en-aut-name=ShimadaAkemi en-aut-sei=Shimada en-aut-mei=Akemi kn-aut-name=島田明美 kn-aut-sei=島田 kn-aut-mei=明美 aut-affil-num=2 ORCID= en-aut-name=TaniguchiNaoko en-aut-sei=Taniguchi en-aut-mei=Naoko kn-aut-name=谷口直子 kn-aut-sei=谷口 kn-aut-mei=直子 aut-affil-num=3 ORCID= en-aut-name=NakamuraJunko en-aut-sei=Nakamura en-aut-mei=Junko kn-aut-name=中村純子 kn-aut-sei=中村 kn-aut-mei=純子 aut-affil-num=4 ORCID= en-aut-name=NishikawaEri en-aut-sei=Nishikawa en-aut-mei=Eri kn-aut-name=西川絵里 kn-aut-sei=西川 kn-aut-mei=絵里 aut-affil-num=5 ORCID= en-aut-name=TanakaDaisaku en-aut-sei=Tanaka en-aut-mei=Daisaku kn-aut-name=田中大策 kn-aut-sei=田中 kn-aut-mei=大策 aut-affil-num=6 ORCID= en-aut-name=MoritaYuichi en-aut-sei=Morita en-aut-mei=Yuichi kn-aut-name=森田雄一 kn-aut-sei=森田 kn-aut-mei=雄一 aut-affil-num=7 ORCID= en-aut-name=NagiSachiyo en-aut-sei=Nagi en-aut-mei=Sachiyo kn-aut-name=凪幸世 kn-aut-sei=凪 kn-aut-mei=幸世 aut-affil-num=8 ORCID= en-aut-name=HasegawaMasumi en-aut-sei=Hasegawa en-aut-mei=Masumi kn-aut-name=長谷川益美 kn-aut-sei=長谷川 kn-aut-mei=益美 aut-affil-num=9 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=10 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=3 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=7 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=8 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=9 en-affil= kn-affil=岡山大学医学部保健学科学生 affil-num=10 en-affil= kn-affil=岡山大学医学部保健学科 en-keyword=チーム医療 (team medical-care) kn-keyword=チーム医療 (team medical-care) en-keyword=アンケート調査 (questionnaire) kn-keyword=アンケート調査 (questionnaire) en-keyword=カンファレンス (medical conference) kn-keyword=カンファレンス (medical conference) END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=2 article-no= start-page=83 end-page=90 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020320 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Suitability on the densitometry systematize in Laser Densitometer Model 1710 for Gafchromic MD-55-2 film kn-title=Gafchromic MD-55-2 fi1mのLaser Densitometer Model 1710における線量計測体系上の適合性 en-subtitle= kn-subtitle= en-abstract=For the medical advancement, the speedy technical innovation is performed also in the radiotherapy. When patients can search for QOL (Quality of Life), the radiation therapy is one of the choices. The radiation therapy system for limited irradiation to lesion without affecting normal tissue has been developed over several years. On the technology of external irradiation in our country, the level is improving to clinical stage from study grade. In such things, a new requirement will come out also as for the measuring method of the medication dose. However, conventional various radiometers have many problems to the dosimetry of the new radiotherapy method. Gafchromic MD-55-2 film, which has new form of radiochromic film based on poly-diacetylene and has been introduced for medical applications recently, is expected to solve some problems. Now, in clinical usage of this film, there is no comprehensive guideline for densitometry system and it's calibration yet. So, in this paper, the densitometry of Gafchromic MD-55-2 film was performed with Laser Densitometer Model 1710 for general-purpose film dosimetry system. And then, problems in the densitometry were extracted and the accuracy of dosimetry was investigated. kn-abstract=医療の高度化に伴い,放射線治療分野においても急速な技術革新が行われている｡QOL(Quality of Life)を考慮に入れた治療が求められる多くの場合,放射線治療が大きな選択肢の一つであることは言うまでもない｡このような状況下の中で,正常組織に影響を与えず病巣に限局した放射線を照射する技術が開発され,外照射においては,欧米に習い我が国でも研究段階から臨床へ移り変わろうとしている｡その際に,投与線量評価を欠かすことができないが,従来から使用されているいずれの線量計も新しい治療法に対応しきれていない｡そこで,フィルムタイプ線量計, Gafchromic MD-55-2 film の開発により,いくつかの問題が解決されてきている｡しかし,この線量計を精度良く測定する濃度測定器が必要になるが,現段階において規格化されたガイドラインが存在しないのが現状である｡そこで本研究では,当施設で保有している]線フィルム線量測定用 Laser Densitometer Model 1710 を用いて Gafchromic MD-55-2 fllm による線量測定を行い,問題点の抽出を行うとともに線量測定精度の考察を行った｡ en-copyright= kn-copyright= en-aut-name=AoyamaHideki en-aut-sei=Aoyama en-aut-mei=Hideki kn-aut-name=青山英樹 kn-aut-sei=青山 kn-aut-mei=英樹 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=InoueMitsuhiro en-aut-sei=Inoue en-aut-mei=Mitsuhiro kn-aut-name=井上光広 kn-aut-sei=井上 kn-aut-mei=光広 aut-affil-num=3 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=4 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=5 ORCID= en-aut-name=UnoHirofumi en-aut-sei=Uno en-aut-mei=Hirofumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=6 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=7 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=財団法人操風会岡山旭東病院放射線課 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学講座 en-keyword=Gafchromic MD-55-2 film kn-keyword=Gafchromic MD-55-2 film en-keyword=Laser Densitometer Model 1710 kn-keyword=Laser Densitometer Model 1710 en-keyword=濃度測定器制御ソフトウェア (Control software of densitometry system) kn-keyword=濃度測定器制御ソフトウェア (Control software of densitometry system) en-keyword=測定精度 (Accuracy of measurement) kn-keyword=測定精度 (Accuracy of measurement) END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=2 article-no= start-page=91 end-page=99 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020320 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=放射線エネルギーの違いによる喉頭癌における吸収線量の影響 kn-title=Influence of the dose to the laryngeal cancer by the difference in radiation beam energy en-subtitle= kn-subtitle= en-abstract=Tl声門癌に対して放射線治療を単独で行うのは確立している方法である｡しかし,頚部は解剖学的に複雑であり,前方に薄いX字形で,喉頭が気道に隣接している構造を持つので,病巣への線量はbuild-upとbuild-downの影響による線量低下が生じることが考えられる｡すなわち,放射線エネルギーの選択が喉頭癌の局所的制御に影響を及ぼすと言える｡この影響は,より高い放射線エネルギーでは,それに伴いより強く起きるということが基礎実験にて報告されている｡また,それらの線量測定は,熱ルミネセンス線量計(TLD)のような従来の測定システムで測定されていた｡しかし,空気空洞へTLD を単体 で浮かせ線量を正確に測定し評価を行うのは困難である｡本研究において,我々は Gafchromic MD-55 film (Nuclear Associates, Inc.)を使用し測定した｡ Gafchromic MD-55 film は,フィルムタイプ線量計でありエネルギー依存性がなく,3〜100 Gyを測定可能であり,アクリル製頸部ファントムの空気組織境界面及び,空洞部に線量計を容易に精度良く配置することが可能である｡また,この線量計は人体の軟部組織に近い組成である｡そこで, 4, 6および10MVの各エネルギーでこの線量計を用いてエネルギーの違いによる,頸部ファントムを用いて喉頭の線量評価を行った｡その結果,我々は,特に放射線エネルギー10MVで頸部ファントムにおける,前部組織-組織空洞境界面-空洞部の一連したbuild-upおよびbuild-downを線量計で評価することができた｡これらの研究の結果､前交連浸潤を有するT1-T2に相当する声門癌患者は,放射線エネルギー6MVおよび10MVではなく,4MVを用いることによって,より効果的な放射線治療を行えると推測できる。 kn-abstract=We investigated the usefulness of Gafchromic MD-55 film (Nuclear Associates, Inc.) for measuring the radiation doses on the radiotherapy of laryngeal cancers. Since larynx has thin wedge-shaped structure in anterior neck adjacent to airway, the radiation doses to the lesion may be diminished because of build-up and build-down. So, the dose has been measured with conventional measuring systems such as thermoluminescent dosimetry (TLD). However, it was not possible to evaluate the dose distribution correctly using TLD, because it is impossible to float a TLD chip in an air cavity. In this study, we employed Gafchromic MD-55 film as a dosimeter, for it can be set on the area of interest and with a measurability of dose range of 3 to 100 Gy, though it has no energy dependency. And this radiometer is composition near the soft tissue of the human body. The dose distributions to larynx were investigated with this film using neck phantom under each radiation beam energy of 4, 6 and 10 MV x-rays. Our neck phantom is made from acrylic resin and simulates a normal larynx on the basis of image information of computed tomography (CT). Moreover we observed secondary build-up and build-down curves in tissue in the vicinity of air cavities, especially at 10 MV x-rays. These findings suggest that patients with TI-T2 glottic cancers with anterior commissure invasion may receive more effective treatment with 4 MV x-rays rather than with 6 MV and 10 MV x-rays. en-copyright= kn-copyright= en-aut-name=AoyamaHideki en-aut-sei=Aoyama en-aut-mei=Hideki kn-aut-name=青山英樹 kn-aut-sei=青山 kn-aut-mei=英樹 aut-affil-num=1 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=2 ORCID= en-aut-name=InoueMitsuhiro en-aut-sei=Inoue en-aut-mei=Mitsuhiro kn-aut-name=井上光広 kn-aut-sei=井上 kn-aut-mei=光広 aut-affil-num=3 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=4 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=5 ORCID= en-aut-name=UnoHirofumi en-aut-sei=Uno en-aut-mei=Hirofumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=6 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=7 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=財団法人操風会岡山旭東病院放射線課 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学講座 en-keyword=Gafchromic MD-55-2 film kn-keyword=Gafchromic MD-55-2 film en-keyword=radiation dose kn-keyword=radiation dose en-keyword=build-up kn-keyword=build-up en-keyword=build-down kn-keyword=build-down en-keyword=glottic cancer kn-keyword=glottic cancer END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=2 article-no= start-page=83 end-page=90 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Extended-cycle processによる乳房撮影用増感紙／フィルムシステムの画質改善 kn-title=Improvement of image quality on mammographic screen-film system by extended-cycle process en-subtitle= kn-subtitle= en-abstract=通常,extended-cycle processは処理時間が約210秒に延ばされた現像機のために使われる用語である｡乳房撮影に使われるような片面乳剤フィルムにおけるextended-cycle processは,フィルムコントラストを増し,感度をあげることが良く知られている｡そこで,本論文ではextended-cycle processにより低感度,高解像度システムの感度を上げ,どの程度解像度が維持されるかを調べた｡片面増感紙／片面フィルムの組合わせであるKonica M-100/CM-Hを低感度,高解像度システムとして用いた｡露光後のフィルムは現像温度30,32, 34度,処理時間210秒の異なる組合わせで現像処理した。一方,高感度システムとしてKonica M-200/CM-Hを用い,このフィルムは標準現像(34℃,90秒)された｡感度,増感紙／フイルムのぼけ,雑音に関して,特性曲線,MTF(modulation transfer function), WS(wiener spectrum)によってこれらのシステムを比較した｡さらにこれらのシステムにおける乳房写真の細部視覚評価のためにRM165ファントムを使用した｡その結果,M-100/CM-Hに対するextended-cycle process現像温度32, 34℃,処理時間210秒のextended-cycle processにおいて,高感度システムM-200/CM-Hと同等の感度を上げることが可能であった｡そのとき,コントラスト,MTF,視覚的検出能も高感度システムより向上した｡さらに,現像温度34℃,処理時間210秒では,被曝線量の低減が可能であった｡ kn-abstract=Extended-cycle process is the term used for a processor in which the processing time has been prolonged usually to approximate 210 seconds. It has been known that the extended-cycle process of some single-emulsion films as used for mammography may enhance film contrast and increase film speed. So the speed was increased in lower speed and higher resolution system than conventional systems by means of using the extended-cycle process in this paper. We investigated how much the resolution of the system was kept. A single screen-single emulsion combination, Konica M-100/CM-H was employed as a low speed and high resolution system. This film after exposure was processed in the different combinations of developing temperatures, 30, 32 and 34℃, and processing time of 210 seconds. On the other hand, Konica M-200/CM-H was employed as a high speed system. This film was processed in the standard-cycle processing (34℃, 90 seconds). Those systems were compared on contrast, speed, screen-film blur and noise by a characteristic curve, MTF (modulation transfer function) and WS (wiener spectrum). Furthermore, the RMI 165 phantom was used to evaluate visibility of mammographic details of these systems. As a result, in the extended-cycle process at the developing temperatures of 32 or 34°C and processing time of 210 seconds for M-100/CM-H, it was possible to increase the speed as much as the higher speed system, M-200/CM-H. Then the contrast, the MTF and the visibility were also improved as compared to the higher speed system. Furthermore patient dose could be reduced at the developing temperature of 34℃ and processing time of 210 seconds in M-100/CM-H. en-copyright= kn-copyright= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=1 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=4 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=KimuraFumie en-aut-sei=Kimura en-aut-mei=Fumie kn-aut-name=木村文江 kn-aut-sei=木村 kn-aut-mei=文江 aut-affil-num=7 ORCID= en-aut-name=KadohisaShigefumi en-aut-sei=Kadohisa en-aut-mei=Shigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=2 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=3 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=4 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=5 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=6 en-affil= kn-affil=岡山大学医学部保健学科放射線技術科学専攻 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=image quality kn-keyword=image quality en-keyword=mammography kn-keyword=mammography en-keyword=single screen-single emulsion film system kn-keyword=single screen-single emulsion film system en-keyword=high-resolution screen kn-keyword=high-resolution screen en-keyword=extended-cycle process kn-keyword=extended-cycle process END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=2 article-no= start-page=113 end-page=119 dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=19980131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Examination of density and mixing ratio of barium preparations, using an originally created phantom kn-title=自作ファントムによる硫酸バリウム製剤の濃度及び混合比の検討 en-subtitle= kn-subtitle= en-abstract=A phantom copied designs of coins was created with alginate dental impression material to establish a objective, simple and easy method for deciding density of barium sulfate suspensions which are used for stomach X-ray examination as contrast media. As a result of examining proper density (PD) of two kind of barium preparations with this phantom, in case of BARITOP P and BARICON MEAL, PD were almost shown by the next equation : PD(W/V%)=0.75C+165(C meant content of BARICON MEAL (%)). As BARICON MEAL resulted in hight contrast, it was thought to be suitable for a close examination. Mixture of BARITOP P and BARICON MEAL was thought to be suited to a routine examination becouse of wide permissible level of density. This phantom would be able to apply to the test of balium preparations, X-ray TV systems, screen/film systems and so on. kn-abstract=胃]線検査に造影剤として用いられる硫酸バリウム懸濁液の濃度を,簡便に,客観的に決定する目的で,歯科用アルギン酸塩印象材を用いて,コインの図柄を写しとったファントムを制作した｡これを使って二種類の硫酸バリウム製剤の適正濃度(PD)を調べた結果,BARITOP PとBARICON MEALを単体,若くは混合した場合には,おおよそ,PD(W/V%)=0.75C+165(ただし,CはBARICON MEALの混合比(%))となった｡また,BARICON MEALはコントラストが高く,精密検査に有利だと考えられ,BARITOP PとBARICON MEALを混合すると濃度の許容範囲が広がるため,通常の検査に都合がよいと考えられた｡更に,このファントムは簡便に作成することができ,しかも,硫酸バリウム懸濁 液との親和性も良いことから,硫酸バリウム製剤や]線TV装置の評価,増感紙･フィルム系の評価等にも応用できると考えられた｡ en-copyright= kn-copyright= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=1 ORCID= en-aut-name=MiyaharaTomonori en-aut-sei=Miyahara en-aut-mei=Tomonori kn-aut-name=宮原智則 kn-aut-sei=宮原 kn-aut-mei=智則 aut-affil-num=2 ORCID= en-aut-name=SumiKazuyuki en-aut-sei=Sumi en-aut-mei=Kazuyuki kn-aut-name=鷲見和幸 kn-aut-sei=鷲見 kn-aut-mei=和幸 aut-affil-num=3 ORCID= en-aut-name=OkuraYasuhiko en-aut-sei=Okura en-aut-mei=Yasuhiko kn-aut-name=大倉保彦 kn-aut-sei=大倉 kn-aut-mei=保彦 aut-affil-num=4 ORCID= en-aut-name=MiyakeKoichi en-aut-sei=Miyake en-aut-mei=Koichi kn-aut-name=三宅浩一 kn-aut-sei=三宅 kn-aut-mei=浩一 aut-affil-num=5 ORCID= en-aut-name=OkudaKazuhiro en-aut-sei=Okuda en-aut-mei=Kazuhiro kn-aut-name=奥田和裕 kn-aut-sei=奥田 kn-aut-mei=和裕 aut-affil-num=6 ORCID= en-aut-name=TandaniNobuyoshi en-aut-sei=Tandani en-aut-mei=Nobuyoshi kn-aut-name=丹谷延義 kn-aut-sei=丹谷 kn-aut-mei=延義 aut-affil-num=7 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=8 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=9 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=10 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=11 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=12 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=13 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=3 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=4 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=5 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=6 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=7 en-affil= kn-affil=（財）倉敷成人病センター放射線部 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=10 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=11 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=12 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=13 en-affil= kn-affil=岡山大学医学部放射線医学教室 en-keyword=造影剤 (contrast media) kn-keyword=造影剤 (contrast media) en-keyword=硫酸バリウム (barium sulfate suspension) kn-keyword=硫酸バリウム (barium sulfate suspension) en-keyword=胃X線検査 (X-ray examination of the stomach) kn-keyword=胃X線検査 (X-ray examination of the stomach) en-keyword=アルギン酸塩印象材 (alginate impression material) kn-keyword=アルギン酸塩印象材 (alginate impression material) en-keyword=ファントム (phantom) kn-keyword=ファントム (phantom) END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=2 article-no= start-page=121 end-page=129 dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=19980131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=現像温度および時間のマンモフイルム特性に与える影響 kn-title=The Influence of Film Processing Temperature and Time on Mammographic film Characteristics en-subtitle= kn-subtitle= en-abstract=フィルム処理条件において,現像温度と処理時間に対する影響を4種類のマンモグラフィ用フィルムKonica New CM, Fuji UM-MA HC,Kodak Min-R M,迅速処理用Kodak EB/RAについて調べた｡そして,比較基準用として両面乳剤フィルムFuji UR-2を用いた｡感光計で露光したフィルムを現像温度28〜36℃,処理時間45〜210秒で処理した｡特性曲線から得られたフィルム特性（平均階調度,相対感度,カブリ濃度）を異なる現像温度,現像時間に対して評価した｡UR-2はほとんど影響を受けず,マンモグラフィ用フィルムは,カブリ濃度が上昇することなく,現像条件の影響を大きく受けた。New CM, UM-MA HC,Min-R Mは現像温度の上昇,処理時間の延長に伴い,平均階調度と相対感度は増加した｡しかし,New CM, UM-MA HCの36℃,210秒で増加は限度に達した｡EB/RAの平均階調度は一定で,相対感度は両面乳剤フイルムと同 様にわずかな増加であった｡これらの結果は,New CM, UM-MA HC, Min-R Mにおいて,処理条件を変化させることにより,被曝低減,コントラスト向上に貢献できる可能性を示唆していた｡ kn-abstract=The influence for developing temperature and processing time within film processing conditions was investigated using four mammographic films, Konica New CM, Fuji UM-MA HC, Kodak Min-R M and Kodak EB/RA (for rapid system). And Fuji UR-2, a double-emulsion film, was used as a control. Those sensitometric strips exposed by a sensitometer were processed in the different combinations of developing temperatures ranging from 28 to 36℃, processing times from 45 to 210 sec. Average gradient, relative speed and base plus fog obtained from the measured film characteristic curves were evaluated for the different developing temperatures and times. Fuji UR-2 was scarcely affected and mammographic films were greatly affected in the different combinations without an increase in base plus fog except EB/RA. In New CM, UM-MA HC and Min-R M, the average gradients and the relative speeds increased as the developing temperature was higher and the developing time was longer, but the increases were limit on the combination of 36℃ and 210 sec in New CM and UM-MA HC. In EB/RA, the average gradients were almost constant and the relative speeds increased slightly like the double-emulsion film. These results suggested that it would be possible to contribute to dose reduction and advancement of contrast in New CM, UM-MA HC and Min-R M by changing these processing parameters. en-copyright= kn-copyright= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=1 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=2 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=3 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=4 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=TakeuchiTomoyuki en-aut-sei=Takeuchi en-aut-mei=Tomoyuki kn-aut-name=竹内知行 kn-aut-sei=竹内 kn-aut-mei=知行 aut-affil-num=7 ORCID= en-aut-name=HondaMitsugi en-aut-sei=Honda en-aut-mei=Mitsugi kn-aut-name=本田貢 kn-aut-sei=本田 kn-aut-mei=貢 aut-affil-num=8 ORCID= en-aut-name=YoshidaAkira en-aut-sei=Yoshida en-aut-mei=Akira kn-aut-name=吉田彰 kn-aut-sei=吉田 kn-aut-mei=彰 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学歯学部附属病院歯科放射線科 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=広島県立保健福祉短期大学放射線技術科学科 en-keyword=マンモグラフィ (Mammography) kn-keyword=マンモグラフィ (Mammography) en-keyword=現像処理パラメータ (Processing Parameter) kn-keyword=現像処理パラメータ (Processing Parameter) en-keyword=特性曲線 (Characteristic Curve) kn-keyword=特性曲線 (Characteristic Curve) en-keyword=平均階調度 (Average Gradient) kn-keyword=平均階調度 (Average Gradient) en-keyword=相対感度 (Relative Speed) kn-keyword=相対感度 (Relative Speed) END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=41 end-page=48 dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=19980930 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Clinical evaluation of barium sulfate suspensions "Barytgen HD" - Second report - kn-title=混合粒子型硫酸バリウム｢バリトゲンHD｣の評価 ―第二報― en-subtitle= kn-subtitle= en-abstract=Barium sulfate suspensions in 200w/v% and 190w/v% had good stability. But in 180w/v% it had worse stability. Significant difference was not observed in coating, visualization of gastric margin and gastric area between in 200w/v% and 190w/v%. Barium sulfate suspensions in 190w/v% had less sticky coating of gastric mucosa and fewer bubbles than 200w/v%. Barium sulfate suspensions in 190w/v% was easiest density to drink. 190w/v% seems to be most adequate density in our study. kn-abstract=混合粒子型硫酸バリウム｢バリトゲンHD｣の懸濁液最適濃度について,検討を行った｡懸濁液安定性は,200w/v%と190w/v%は良好であったが,180w/v%は不良で臨床使用には不向きであると思われた｡臨床的評価において200w/v%と190w/v%は付着性,辺縁の描出能,胃小区描出能においては同程度であった｡200w/v%に多く見られた凝集･ムラ付き,気泡は,190w/v%では少なくなった｡飲み易さは,200w/v%,190w/v%とも飲み易いと評価されたが,190w/v%でより飲み易い傾向にあった｡バリトゲンHDの最適懸濁液濃度は,190w/v%であると思われる｡ en-copyright= kn-copyright= en-aut-name=NobuharaEitarou en-aut-sei=Nobuhara en-aut-mei=Eitarou kn-aut-name=延原栄太朗 kn-aut-sei=延原 kn-aut-mei=栄太朗 aut-affil-num=1 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=2 ORCID= en-aut-name=NiiyaHarutaka en-aut-sei=Niiya en-aut-mei=Harutaka kn-aut-name=新屋晴孝 kn-aut-sei=新屋 kn-aut-mei=晴孝 aut-affil-num=3 ORCID= en-aut-name=ShibuyaKoichi en-aut-sei=Shibuya en-aut-mei=Koichi kn-aut-name=澁谷光一 kn-aut-sei=澁谷 kn-aut-mei=光一 aut-affil-num=4 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=5 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=6 ORCID= en-aut-name=JojaIkuo en-aut-sei=Joja en-aut-mei=Ikuo kn-aut-name=上者郁夫 kn-aut-sei=上者 kn-aut-mei=郁夫 aut-affil-num=7 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院放射線科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院放射線科 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院放射線科 en-keyword=造影剤 (contrast medium) kn-keyword=造影剤 (contrast medium) en-keyword=硫酸バリウム (barium sulfate suspension) kn-keyword=硫酸バリウム (barium sulfate suspension) en-keyword=消化管検査 (barium examination) kn-keyword=消化管検査 (barium examination) END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=37 end-page=42 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970910 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Influence of the Bone for Electron-beam Therapy kn-title=電子線治療における骨の線量分布に対する影響に関する検討 en-subtitle= kn-subtitle= en-abstract=The Electron-beam therapy is often used for the treatment to malignant tumors on the surface or its neighborhood of the body. An electron-beam has the range depended on its energy, and its dose is rapidly decreased at the points beyond the range. This property is available to irradiating a tumor with leaving the critical organs unexposed. However, we should take notice that the dose-distributions are disordered if materials of various densities are in the irradiation field. In this paper, we examined how the dose-distribution are disordered by using the phantom made from human bones of various volumes. As a result, the peculiar disorders of the dose-distribution due to the difference of the bone width were found at the back and edge of a bone. Moreover, the dose at the edge of a bone was decreased, but the dose at the side of a bone was rapidly increased in the distance position from the bone. It is necessary to take account of that the above peculiar phenomenon affect the total dose for the treatment when bones exist near the target volume in the irradiation field. kn-abstract=電子線治療は,体表面またはその近傍に発生する悪性腫瘍の治療にしばしば用いられる治療法である｡電子線はエネルギーに対応した飛程を持っており,飛程を越えると急激に線量は減少する。この性質は腫瘍に一定の線量を照射し,腫瘍後方に存在する決定臓器を保護することができるので,病巣を選択的 に治療するのに好都合である｡しかし,照射野内に人体軌部組織より密度の違う物質が存在する場合,散乱,吸収の影響が大きく,電子線線量分布は乱れたものとなる｡今回,人体内にある骨を想定してVolumeの違う骨Phantomを使 用して影響を調べたところ,骨幅によって骨後方および断端に線量の乱れが生じることがわかった｡すなわち,骨の中央ではある程度後方に距離が離れると,線量は大きく減少する現象が見られた。また,横方向の線量分布は骨断端近くで一旦線量の減少が見られ,断端を離れると急激に増加する｡したがって,実際の臨床において,Target Volume近くに骨が存在する場合は総線量の決定に際して注意が必要である｡ en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=2 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=3 ORCID= en-aut-name=UnoHirofumi en-aut-sei=Uno en-aut-mei=Hirofumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=4 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=5 ORCID= en-aut-name=SibuyaKoichi en-aut-sei=Sibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=6 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=7 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=8 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=9 ORCID= en-aut-name=SakaeKatsuyosi en-aut-sei=Sakae en-aut-mei=Katsuyosi kn-aut-name=栄勝美 kn-aut-sei=栄 kn-aut-mei=勝美 aut-affil-num=10 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=中川富夫 kn-aut-sei=中川 kn-aut-mei=富夫 aut-affil-num=11 ORCID= en-aut-name=TakemotoMitsuhiro en-aut-sei=Takemoto en-aut-mei=Mitsuhiro kn-aut-name=武本充広 kn-aut-sei=武本 kn-aut-mei=充広 aut-affil-num=12 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=13 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=14 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=7 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=8 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=10 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=11 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=12 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=13 en-affil= kn-affil=岡山大学医療技術短期大学部 affil-num=14 en-affil= kn-affil=岡山大学医学部放射線医学教室 en-keyword=電子線治療 (electron-beam therapy) kn-keyword=電子線治療 (electron-beam therapy) en-keyword=線量分布 (dose distribution) kn-keyword=線量分布 (dose distribution) en-keyword=不均質物質 (inhomogeneity) kn-keyword=不均質物質 (inhomogeneity) END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=2 article-no= start-page=105 end-page=112 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Clinical evaluation was examined between mixed type barium sulfate suspensions "BarytgenHD" and "Barytgen" kn-title=混合粒子型硫酸バリウム｢バリトゲンHD｣の評価 en-subtitle= kn-subtitle= en-abstract=Both barium sulfate suspensions, Barytgen HD and Barytgen, had good stability. Although significant difference was not abserved in coating and visualization of gastric area, BarytgenHD showed better marginal visualization of gastric margin. Further study is needed to improve the visualization of sticky coating of gastric mucosa and many bubbles. BarytgenHD was easily to drink instead of high density barium sulfate suspensions. kn-abstract=混合粒子型硫酸バリウムバリトゲンHD200w/v%懸濁液について,バリトゲン160w/v%懸濁液と比較検討を行った｡懸濁液安定性は両者共良かった｡臨床評価においては,付着性,胃小区描出能は同程度であり,辺縁の描出能は良かったが凝集･ムラ付き,気泡は多くみられ懸濁液濃度について検討を加える必要があると考える｡飲み易さは,バリトゲンHD200w/v%懸濁液のほうが濃度が高いのにもかかわらず飲み易く好評であった｡ en-copyright= kn-copyright= en-aut-name=NobuharaEitarou en-aut-sei=Nobuhara en-aut-mei=Eitarou kn-aut-name=延原栄太朗 kn-aut-sei=延原 kn-aut-mei=栄太朗 aut-affil-num=1 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=2 ORCID= en-aut-name=ShibuyaKohichi en-aut-sei=Shibuya en-aut-mei=Kohichi kn-aut-name=澁谷光一 kn-aut-sei=澁谷 kn-aut-mei=光一 aut-affil-num=3 ORCID= en-aut-name=OguriNobuhiro en-aut-sei=Oguri en-aut-mei=Nobuhiro kn-aut-name=小栗宣博 kn-aut-sei=小栗 kn-aut-mei=宣博 aut-affil-num=4 ORCID= en-aut-name=AriokaTadashi en-aut-sei=Arioka en-aut-mei=Tadashi kn-aut-name=有岡匡 kn-aut-sei=有岡 kn-aut-mei=匡 aut-affil-num=5 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=6 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=7 ORCID= en-aut-name=NiiyaHarutaka en-aut-sei=Niiya en-aut-mei=Harutaka kn-aut-name=新屋晴孝 kn-aut-sei=新屋 kn-aut-mei=晴孝 aut-affil-num=8 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=9 ORCID= en-aut-name=JojaIkuo en-aut-sei=Joja en-aut-mei=Ikuo kn-aut-name=上者郁夫 kn-aut-sei=上者 kn-aut-mei=郁夫 aut-affil-num=10 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=11 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=12 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院放射線科 affil-num=9 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院放射線科 affil-num=11 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=12 en-affil= kn-affil=岡山大学医学部附属病院放射線科 en-keyword=造影剤 (contorast media) kn-keyword=造影剤 (contorast media) en-keyword=硫酸バリウム (barium sulfate suspension) kn-keyword=硫酸バリウム (barium sulfate suspension) en-keyword=消化管検査 (barium examination) kn-keyword=消化管検査 (barium examination) END start-ver=1.4 cd-journal=joma no-vol=98 cd-vols= no-issue=7-8 article-no= start-page=687 end-page=695 dt-received= dt-revised= dt-accepted= dt-pub-year=1986 dt-pub=19860830 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Radiation Therapy of Angioblastoma (Nakagawa) of the Skin kn-title=血管芽細胞腫(中川)の放射線治療 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Percent depth dose curves of Lineac electron beam and Dermopan soft X-ray, which are used for radiation therapy of surface tumors, were studied in 2 patients with angioblastoma (Nakagawa) who had been followed up for a long time after radiation therapy. The results are discussed with a review of the literature. Lineac electron beam therapy at low doses that do not cause remote complications appeared to be useful in the treatment of surface tumors selected after careful consideration of the indications. en-copyright= kn-copyright= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=1 ORCID= en-aut-name=MorimotoSetsuo en-aut-sei=Morimoto en-aut-mei=Setsuo kn-aut-name=森本節夫 kn-aut-sei=森本 kn-aut-mei=節夫 aut-affil-num=2 ORCID= en-aut-name=SatohNobuo en-aut-sei=Satoh en-aut-mei=Nobuo kn-aut-name=佐藤伸夫 kn-aut-sei=佐藤 kn-aut-mei=伸夫 aut-affil-num=3 ORCID= en-aut-name=YamamotoYoshio en-aut-sei=Yamamoto en-aut-mei=Yoshio kn-aut-name=山本淑雄 kn-aut-sei=山本 kn-aut-mei=淑雄 aut-affil-num=4 ORCID= en-aut-name=ShirakamiToshiaki en-aut-sei=Shirakami en-aut-mei=Toshiaki kn-aut-name=白神敏明 kn-aut-sei=白神 kn-aut-mei=敏明 aut-affil-num=5 ORCID= en-aut-name=JojaIkuo en-aut-sei=Joja en-aut-mei=Ikuo kn-aut-name=上者郁夫 kn-aut-sei=上者 kn-aut-mei=郁夫 aut-affil-num=6 ORCID= en-aut-name=KimotoShin en-aut-sei=Kimoto en-aut-mei=Shin kn-aut-name=木本真 kn-aut-sei=木本 kn-aut-mei=真 aut-affil-num=7 ORCID= en-aut-name=HashimotoKeiji en-aut-sei=Hashimoto en-aut-mei=Keiji kn-aut-name=橋本啓二 kn-aut-sei=橋本 kn-aut-mei=啓二 aut-affil-num=8 ORCID= en-aut-name=AonoKaname en-aut-sei=Aono en-aut-mei=Kaname kn-aut-name=青野要 kn-aut-sei=青野 kn-aut-mei=要 aut-affil-num=9 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=10 ORCID= en-aut-name=ArakawaKenzo en-aut-sei=Arakawa en-aut-mei=Kenzo kn-aut-name=荒川謙三 kn-aut-sei=荒川 kn-aut-mei=謙三 aut-affil-num=11 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=2 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=3 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=4 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=5 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=6 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=7 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=11 en-affil= kn-affil=岡山大学医学部皮膚科学教室 en-keyword=血管芽細胞腫(中川) kn-keyword=血管芽細胞腫(中川) en-keyword=放射線治療 kn-keyword=放射線治療 en-keyword=電子線治療 kn-keyword=電子線治療 en-keyword=Dermopan 軟 X線治療 kn-keyword=Dermopan 軟 X線治療 END start-ver=1.4 cd-journal=joma no-vol=96 cd-vols= no-issue=11-12 article-no= start-page=1063 end-page=1071 dt-received= dt-revised= dt-accepted= dt-pub-year=1984 dt-pub=19841230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=An Evaluation of the Pendulum Technique of Electron Beam Therapy kn-title=電子線振子照射法の検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Electron beam therapy of lesions such as cutaneous metastatic carcinoma and reticulum cell sarcoma is performed via multiple portals for a wide irradiation field. However, the dose distribution in border areas is generally uneven, resulting in hot and cold dose areas depending on the intervals of the portals. We performed electron irradiation by the pendulum technique, especially on curved areas, and evaluated the technique in various respects. Pendulum electron beam irradiation is indicated when the length of the cone must be reduced in order to deliver the target volume near the skin surface as well as to avoid the occurrence of hot spots deep in the body. We prepared a 15cm rotating cone by cutting a 30cm fixed irradiation cone. The modification posed no disadvantages in terms of extent and flatness of the beam, or stability during rotation. After determining the relationship between the rotation speed and the dose, the technique was successfully applied to a patient with adult T-cell lymphoma, at a total of 3000cGy. en-copyright= kn-copyright= en-aut-name=MatsushimaKishio en-aut-sei=Matsushima en-aut-mei=Kishio kn-aut-name=松島紀志夫 kn-aut-sei=松島 kn-aut-mei=紀志夫 aut-affil-num=1 ORCID= en-aut-name=OguriNobuhiro en-aut-sei=Oguri en-aut-mei=Nobuhiro kn-aut-name=小栗宣博 kn-aut-sei=小栗 kn-aut-mei=宣博 aut-affil-num=2 ORCID= en-aut-name=WakasaHiroyuki en-aut-sei=Wakasa en-aut-mei=Hiroyuki kn-aut-name=若狭弘之 kn-aut-sei=若狭 kn-aut-mei=弘之 aut-affil-num=3 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=4 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=5 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=6 ORCID= en-aut-name=KimotoShin en-aut-sei=Kimoto en-aut-mei=Shin kn-aut-name=木本真 kn-aut-sei=木本 kn-aut-mei=真 aut-affil-num=7 ORCID= en-aut-name=HashimotoKeiji en-aut-sei=Hashimoto en-aut-mei=Keiji kn-aut-name=橋本啓二 kn-aut-sei=橋本 kn-aut-mei=啓二 aut-affil-num=8 ORCID= en-aut-name=AonoKaname en-aut-sei=Aono en-aut-mei=Kaname kn-aut-name=青野要 kn-aut-sei=青野 kn-aut-mei=要 aut-affil-num=9 ORCID= en-aut-name=FujimotoWataru en-aut-sei=Fujimoto en-aut-mei=Wataru kn-aut-name=藤本亘 kn-aut-sei=藤本 kn-aut-mei=亘 aut-affil-num=10 ORCID= en-aut-name=KodamaHajime en-aut-sei=Kodama en-aut-mei=Hajime kn-aut-name=小玉肇 kn-aut-sei=小玉 kn-aut-mei=肇 aut-affil-num=11 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=7 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=10 en-affil= kn-affil=岡山大学医学部皮膚科学教室 affil-num=11 en-affil= kn-affil=岡山大学医学部皮膚科学教室 en-keyword=放射線治療技術 kn-keyword=放射線治療技術 en-keyword=電子線振子照射法 kn-keyword=電子線振子照射法 en-keyword=ATL kn-keyword=ATL END start-ver=1.4 cd-journal=joma no-vol=96 cd-vols= no-issue=11-12 article-no= start-page=1175 end-page=1182 dt-received= dt-revised= dt-accepted= dt-pub-year=1984 dt-pub=19841230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Moving Strip Technique of Electoron Beam Therapy kn-title=電子線moving strip法の試み en-subtitle= kn-subtitle= en-abstract= kn-abstract=The fieldsize in electron beam therapy is determined by the cone size. In cases of skin metastasis of a malignant tumor and so on, which need a large field size and whose area is much larger than the size of the cone, a large field size is usually produced by dividing the portals. However, the dose distribution at the border of the field becomes unequal, and hot and cold dose areas are produced according to the distance between portals. We tried the strip field technique in a large field along the long axis of the body in order to flatten the dose of the border employing the moving strip used for whole abdominal irradiation in ovarian cancer. We set the film in Mix-DP and used the strip field technique with 2.5cm steps. We discussed the relationship between the interval (distance between portals) and the flattening of the dose within the field. Skin movement due to breathing and influences on the flattening of the dose were considered. The proper flatness was obtained at depths of 0,1,2, and 3cm by setting the interval at 0.5cm. When skin movement was produced by breathing in ±1.5mm, the proper flaness was obtained also at a 0.5-cm interval. It seems that smoothing is increased by breathing. An "electron beam moving strip" with a 2.5-cm step and 0.5-cm interval was clinically effective in the treatment of patients with skin metastasis of colon cancer. en-copyright= kn-copyright= en-aut-name=MatsushimaKisho en-aut-sei=Matsushima en-aut-mei=Kisho kn-aut-name=松島紀志夫 kn-aut-sei=松島 kn-aut-mei=紀志夫 aut-affil-num=1 ORCID= en-aut-name=WakasaHiroyuki en-aut-sei=Wakasa en-aut-mei=Hiroyuki kn-aut-name=若狭弘之 kn-aut-sei=若狭 kn-aut-mei=弘之 aut-affil-num=2 ORCID= en-aut-name=OguriNobuhiro en-aut-sei=Oguri en-aut-mei=Nobuhiro kn-aut-name=小栗宣博 kn-aut-sei=小栗 kn-aut-mei=宣博 aut-affil-num=3 ORCID= en-aut-name=KitayamaTakuichi en-aut-sei=Kitayama en-aut-mei=Takuichi kn-aut-name=北山卓一 kn-aut-sei=北山 kn-aut-mei=卓一 aut-affil-num=4 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=5 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=6 ORCID= en-aut-name=HashimotoKeiji en-aut-sei=Hashimoto en-aut-mei=Keiji kn-aut-name=橋本啓二 kn-aut-sei=橋本 kn-aut-mei=啓二 aut-affil-num=7 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=8 ORCID= en-aut-name=AonoKaname en-aut-sei=Aono en-aut-mei=Kaname kn-aut-name=青野要 kn-aut-sei=青野 kn-aut-mei=要 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 en-keyword=電子線治療技術 kn-keyword=電子線治療技術 en-keyword=moving strip 法 kn-keyword=moving strip 法 en-keyword=皮膚転移腫 kn-keyword=皮膚転移腫 END start-ver=1.4 cd-journal=joma no-vol=96 cd-vols= no-issue=11-12 article-no= start-page=1205 end-page=1215 dt-received= dt-revised= dt-accepted= dt-pub-year=1984 dt-pub=19841230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A clinical application of an alternate irradiation system kn-title=中心分割法の臨床的応用 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In 1979, we published an article about an alternate irradiation system in the Japanese Journal of Radiological Technology. This system was very useful for wide local radiation. In the present study, we examined the usefulness of this system in T-shape fields for patients bearing esophageal cancer, lung cancer, etc; in a 90° angle, two-portal teratment for a patient with maxillary cancer, and in a tangencial treatment for a patient bearing a rib metastatic tumor. The system was very useful, and side effects were minimal. en-copyright= kn-copyright= en-aut-name=MatsushimaKishio en-aut-sei=Matsushima en-aut-mei=Kishio kn-aut-name=松島紀志夫 kn-aut-sei=松島 kn-aut-mei=紀志夫 aut-affil-num=1 ORCID= en-aut-name=NagayaIsao en-aut-sei=Nagaya en-aut-mei=Isao kn-aut-name=永谷伊佐雄 kn-aut-sei=永谷 kn-aut-mei=伊佐雄 aut-affil-num=2 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=3 ORCID= en-aut-name=KadohisaShigefumi en-aut-sei=Kadohisa en-aut-mei=Shigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=4 ORCID= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=5 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=6 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=7 ORCID= en-aut-name=AonoKaname en-aut-sei=Aono en-aut-mei=Kaname kn-aut-name=青野要 kn-aut-sei=青野 kn-aut-mei=要 aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=放射線治療 kn-keyword=放射線治療 en-keyword=T字形照射野 kn-keyword=T字形照射野 en-keyword=水晶体保護 kn-keyword=水晶体保護 END start-ver=1.4 cd-journal=joma no-vol=20 cd-vols= no-issue= article-no= start-page=17 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=199808 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Patient Dose on the Radiological Diagnosis of Abdomen - The Situation of Patient nose at Hospitals in Okayama Prefecture - kn-title=腹部単純X線撮影時の被曝線量―岡山県下の病院の現況― en-subtitle= kn-subtitle= en-abstract= kn-abstract=In 1995, we have published a paper about the basic data on the relation between X-ray exposure equipment and patient dose in Vol. 17 of the Journal "Environment Research and Control". In this time, we questioned hospitals in Okayama Prefecture about exposure equipments of abdomen. And we compared each hospital's exposure equipments with the basic data, calculated each patient dose, then we studied that differences. Various imaging system, for example; screen/film or imaging plate has been used at each hospitals, so that exposure are various and patient doses are very different. The exposure equipment decide that the X-ray photograph is good or bad, so we cannot treat it easily. But we think that we have to try to take X-ray photographs which are suit the purpose of diagnosis which as a small patient dose as possible. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=2 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=3 ORCID= en-aut-name=SibuyaKoichi en-aut-sei=Sibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=4 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=7 ORCID= en-aut-name=KadohisaSigefumi en-aut-sei=Kadohisa en-aut-mei=Sigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=8 ORCID= en-aut-name=InoueTatsuya en-aut-sei=Inoue en-aut-mei=Tatsuya kn-aut-name=井上龍也 kn-aut-sei=井上 kn-aut-mei=龍也 aut-affil-num=9 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=10 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=医用放射線被曝 kn-keyword=医用放射線被曝 en-keyword=X線撮影条件 kn-keyword=X線撮影条件 en-keyword=線量測定 kn-keyword=線量測定 END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue= article-no= start-page=63 end-page=70 dt-received= dt-revised= dt-accepted= dt-pub-year=1995 dt-pub=19951220 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Relationship between X-ray Exposure and Patient Dose on the Radiological Diagnosis kn-title=診療用X線検査における撮影条件と被曝線量の関係について―特に腹部検査を対象して― en-subtitle= kn-subtitle= en-abstract= kn-abstract=Patient dose is important consideration in the radiological examination and our environment regarding radiation. Many studies have been published about patient dose, but those data were classified by each organ or tissue. Actuarially, patient dose should be checked by each examined part of patient and each exposure equipment. In this paper, we measured absorbed dose at the depth of 0-200mm with the Mix-DP phantom. The phantom is made by tissue equivalent meterial and is designed to similitude abdominal part. Percentage Depth Dose (PDD) was calculated from these doses. Three single-phase generators and three three-phases generators were used in this measurement. These measurements were analyzed by each equipment, and consequently the clear difference of PDD between the exposure equipments was not found. As the result, we can estimate patient dose at a random depth by using PDD. Furthermore, we can easily know patient dose from the tube-voltage and current time product by the calculation including PDD.These data are very useful to manager patient dose on radiological diagnosis. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=AzumaYoshiharu en-aut-sei=Azuma en-aut-mei=Yoshiharu kn-aut-name=東義晴 kn-aut-sei=東 kn-aut-mei=義晴 aut-affil-num=2 ORCID= en-aut-name=SibuyaKoichi en-aut-sei=Sibuya en-aut-mei=Koichi kn-aut-name=渋谷光一 kn-aut-sei=渋谷 kn-aut-mei=光一 aut-affil-num=3 ORCID= en-aut-name=GotoSachiko en-aut-sei=Goto en-aut-mei=Sachiko kn-aut-name=後藤佐知子 kn-aut-sei=後藤 kn-aut-mei=佐知子 aut-affil-num=4 ORCID= en-aut-name=MaruyamaToshinori en-aut-sei=Maruyama en-aut-mei=Toshinori kn-aut-name=丸山敏則 kn-aut-sei=丸山 kn-aut-mei=敏則 aut-affil-num=5 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=6 ORCID= en-aut-name=SonoyamaMasayo en-aut-sei=Sonoyama en-aut-mei=Masayo kn-aut-name=園山真世 kn-aut-sei=園山 kn-aut-mei=真世 aut-affil-num=7 ORCID= en-aut-name=MoriokaYasuki en-aut-sei=Morioka en-aut-mei=Yasuki kn-aut-name=森岡泰樹 kn-aut-sei=森岡 kn-aut-mei=泰樹 aut-affil-num=8 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=9 ORCID= en-aut-name=TaharaSeiji en-aut-sei=Tahara en-aut-mei=Seiji kn-aut-name=田原誠司 kn-aut-sei=田原 kn-aut-mei=誠司 aut-affil-num=10 ORCID= en-aut-name=UnoHirofumi en-aut-sei=Uno en-aut-mei=Hirofumi kn-aut-name=宇野弘文 kn-aut-sei=宇野 kn-aut-mei=弘文 aut-affil-num=11 ORCID= en-aut-name=KadohisaShigefumi en-aut-sei=Kadohisa en-aut-mei=Shigefumi kn-aut-name=門久繁文 kn-aut-sei=門久 kn-aut-mei=繁文 aut-affil-num=12 ORCID= en-aut-name=InoueTatsuya en-aut-sei=Inoue en-aut-mei=Tatsuya kn-aut-name=井上龍也 kn-aut-sei=井上 kn-aut-mei=龍也 aut-affil-num=13 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=14 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=5 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=6 en-affil= kn-affil=岡山大学医療技術短期大学部診療放射線技術学科 affil-num=7 en-affil= kn-affil= affil-num=8 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=9 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=10 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=11 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=12 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=13 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=14 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 en-keyword=医用放射線被曝 (patient dose) kn-keyword=医用放射線被曝 (patient dose) en-keyword=X線撮影条件 (X-ray exposure) kn-keyword=X線撮影条件 (X-ray exposure) en-keyword=線量測定 (Radiation dosimetry) kn-keyword=線量測定 (Radiation dosimetry) END start-ver=1.4 cd-journal=joma no-vol=102 cd-vols= no-issue=9-10 article-no= start-page=1167 end-page=1173 dt-received= dt-revised= dt-accepted= dt-pub-year=1990 dt-pub=199010 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Electron beam therapy in carcinoma of the buccal mucosa kn-title=頬粘膜癌に対する電子線治療法の検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Electron beam therapy has often been used for radiation therapy of carcinomas of the buccal mucosa, though side effects including, stomatitis and dermatitis are known to exist. We experimented using the additional back scatter and transit with the phantom under a lead plate within the irradiation field, in order to better focus the dose on the target volume moreover, we fabricated a mouthpiece fitted with a lead plate shaped to the target volume, and with respect to the influence of the mouthpiece on stomatitis and dermatitis, obtained good clinical results. en-copyright= kn-copyright= en-aut-name=NakagiriYoshitada en-aut-sei=Nakagiri en-aut-mei=Yoshitada kn-aut-name=中桐義忠 kn-aut-sei=中桐 kn-aut-mei=義忠 aut-affil-num=1 ORCID= en-aut-name=MiyakeHideaki en-aut-sei=Miyake en-aut-mei=Hideaki kn-aut-name=三宅英昭 kn-aut-sei=三宅 kn-aut-mei=英昭 aut-affil-num=2 ORCID= en-aut-name=SugitaKatsuhiko en-aut-sei=Sugita en-aut-mei=Katsuhiko kn-aut-name=杉田勝彦 kn-aut-sei=杉田 kn-aut-mei=勝彦 aut-affil-num=3 ORCID= en-aut-name=MikamiYasutaka en-aut-sei=Mikami en-aut-mei=Yasutaka kn-aut-name=三上泰隆 kn-aut-sei=三上 kn-aut-mei=泰隆 aut-affil-num=4 ORCID= en-aut-name=InamuraKeiji en-aut-sei=Inamura en-aut-mei=Keiji kn-aut-name=稲村圭司 kn-aut-sei=稲村 kn-aut-mei=圭司 aut-affil-num=5 ORCID= en-aut-name=MimuraSeiichi en-aut-sei=Mimura en-aut-mei=Seiichi kn-aut-name=三村誠一 kn-aut-sei=三村 kn-aut-mei=誠一 aut-affil-num=6 ORCID= en-aut-name=OhkawaYoshihiro en-aut-sei=Ohkawa en-aut-mei=Yoshihiro kn-aut-name=大川義弘 kn-aut-sei=大川 kn-aut-mei=義弘 aut-affil-num=7 ORCID= en-aut-name=TakedaYoshihiro en-aut-sei=Takeda en-aut-mei=Yoshihiro kn-aut-name=竹田芳弘 kn-aut-sei=竹田 kn-aut-mei=芳弘 aut-affil-num=8 ORCID= en-aut-name=HirakiYoshio en-aut-sei=Hiraki en-aut-mei=Yoshio kn-aut-name=平木祥夫 kn-aut-sei=平木 kn-aut-mei=祥夫 aut-affil-num=9 ORCID= en-aut-name=FujikiTomokazu en-aut-sei=Fujiki en-aut-mei=Tomokazu kn-aut-name=藤木知一 kn-aut-sei=藤木 kn-aut-mei=知一 aut-affil-num=10 ORCID= en-aut-name=KishiKanji en-aut-sei=Kishi en-aut-mei=Kanji kn-aut-name=岸幹二 kn-aut-sei=岸 kn-aut-mei=幹二 aut-affil-num=11 ORCID= en-aut-name=ChiharaNaoto en-aut-sei=Chihara en-aut-mei=Naoto kn-aut-name=千原直人 kn-aut-sei=千原 kn-aut-mei=直人 aut-affil-num=12 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医療短期大学部診療放射線技術学科 affil-num=2 en-affil= kn-affil=岡山大学医療短期大学部診療放射線技術学科 affil-num=3 en-affil= kn-affil=岡山大学医療短期大学部診療放射線技術学科 affil-num=4 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=5 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=6 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=7 en-affil= kn-affil=岡山大学医学部附属病院中央放射線部 affil-num=8 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=9 en-affil= kn-affil=岡山大学医学部放射線医学教室 affil-num=10 en-affil= kn-affil=岡山大学歯学部歯科放射線学講座 affil-num=11 en-affil= kn-affil=岡山大学歯学部歯科放射線学講座 affil-num=12 en-affil= kn-affil=岡山大学歯学部第二口腔外科学講座 en-keyword=頬部粘膜癌 kn-keyword=頬部粘膜癌 en-keyword=電子線治療 kn-keyword=電子線治療 en-keyword=後方散乱線 kn-keyword=後方散乱線 en-keyword=mouthpiece kn-keyword=mouthpiece END