ID 31317
JaLCDOI
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Author
Satoh, Katashi
Takahashi, Kazue
kobayashi, Takuya
Yamamoto, Yuka
Nishiyama, Yoshihiro Kaken ID publons researchmap
Tanabe, Masatada
Abstract

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.

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
Web of Science KeyUT