JaLCDOI 10.18926/AMO/31317
FullText URL fulltext.pdf
Author Satoh, Katashi| Takahashi, Kazue| kobayashi, Takuya| Yamamoto, Yuka| Nishiyama, Yoshihiro| Tanabe, Masatada|
Abstract <p>X-ray computed tomography (CT) has been used for diagnosis of pulmonary emphysema because it can reveal the morphology of low attenuation areas. Recently, 99mTc-Technegas imaging, one of several types of scintigraphic techniques, has been used for ventilation scintigraphy. Technegas scintigraphy was performed on 15 patients with pulmonary emphysema, and we compared the extent and degree of abnormal findings on Technegas scintigraphy with the extent of low attenuation areas shown by CT. We classified the findings of Technegas imaging into three grades, from mild to severe, according to the extent of peripheral irregularity and central hot spot formation. We also classified the findings of CT as centrilobular emphysema into three grades from mild to severe according to the extent of low attention areas in the peripheral lung fields. In 5 cases, CT and Technegas assessment resulted in equivalent diagnoses. In eight cases, Technegas images showed more detailed findings than CT images. In the two remaining cases, which were diagnosed as panlobular emphysema on CT, Technegas images showed the severe stage. Technegas scintigraphy was useful for diagnostic assessment of pulmonary emphysema, especially for panlobular emphysema, which is difficult to distinguish from the normal lung condition by CT assessment.</p>
Keywords <sup> 99m</sup>Technetium-Technegas single photon emission computed tomography computed tomography centrilobular emphysema panlobular emphysema
Amo Type Article
Published Date 1998-04
Publication Title Acta Medica Okayama
Volume volume52
Issue issue2
Publisher Okayama University Medical School
Start Page 97
End Page 103
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 9588225
Web of Sience KeyUT 000073363000005
Author Nishiyama, Yoshihiro|
Published Date 2005-4
Publication Title Physical Review E
Volume volume71
Issue issue4
Content Type Journal Article
Author Nishiyama, Yoshihiro|
Published Date 2004-8
Publication Title Physical Review E
Volume volume70
Issue issue2
Content Type Journal Article
Author Nishiyama, Yoshihiro|
Published Date 2006-1
Publication Title Physical Review E
Volume volume73
Issue issue1
Content Type Journal Article
Author Nishiyama, Yoshihiro|
Published Date 2004-7
Publication Title Physical Review E
Volume volume70
Issue issue1
Content Type Journal Article