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Ⅹ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