Japanese
Title99mTc-Tetrofosmin心筋シンチグラフィでの血流画像および機能画像の同時評価の有用性
Subtitle原著
Authors今井嘉門*, 浅川喜裕*, 星野寛倫*, 芝田貴裕*, 小川洋司*, 堀江俊伸*
Authors(kana)
Organization*埼玉県立小原循環器病センター循環器科
Journal核医学
Volume32
Number9
Page997-1005
Year/Month1995/9
Article原著
Publisher日本核医学会
Abstract「要旨」99mTc-tetrofosmin(Tf)心筋シンチグラフィで血流画像(P)に機能画像(F)を追加することにより, 診断能が向上するか検討した. 対象は, 心筋梗塞の既往を認めず運動負荷心筋シンチ(一日運動/安静法)でPおよびFが得られた51症例である. Fは第一回循環時法で, PはSPECTで記録した. 冠動脈病変(右冠動脈(RCA)(n=14), 前下行枝(LAD)(n=18), 左回旋枝(LCX)(n=12))とPおよびFの異常部位とを対比検討した. 診断能は, 1)P単独で, 2)P+Fの併用で検討した. AccuracyはPではRCA:53%, LAD:94%, LCX:86%で, P+FではRCA:76%, LAD:90%, LCX:84%であった. Fを追加することにより, RCA領域で改善を認めた. Tf心筋シンチで, 従来からのPにFを追加すると, RCA領域の診断能は向上した. それゆえ, 機能画像の追加は冠動脈疾患で, 特にRCA領域を診断する上で有用である.
Practice臨床医学：一般
Keywords99mTc-tetrofosmin, Coronary artery disease, Perfusion image, Function image.
English
TitleEfficacy of Simultaneous Function and Perfusion Imaging on 99mTc-Tetrofosmin Myocardial Scintigraphy
SubtitleOriginal Articles
AuthorsKamon IMAI, Kihiro ASAKAWA, Hirotsugu HOSHINO, Takahiro SHIBATA, Hiroshi OGAWA, Toshinobu HORIE
Authors(kana)
OrganizationDepartment of Cardiology, Saitama-Ohara Cardiovascular Center
JournalThe Japanese Journal of nuclear medicine
Volume32
Number9
Page997-1005
Year/Month1995/9
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
AbstractThe aim of this study was to determine whether the diagnosis for coronary artery disease (CAD) with 99mTc-tetrofosmin (Tf) myocardial scintigraphy was improved by the combination of function image and perfusion image as compared with perfusion alone. Tf myocardial scintigraphy was performed with one-day protocol (stress/rest) in 51 patients (CAD:32, Non-CAD:19) without previous myocardial infarction. Function image was obtained by first pass method, and perfusion image by SPECT. Number of diseased vessels was 14 in right coronary artery (RCA), 18 in left anterior descending (LAD), and 12 in left circumflex (LCX). Ischemia was diagnosed by 2 different pararneters 1)perfusion image alone, 2)combination of perfusion image and regional ejection fraction (rEF). On perfusion image, accuracy was 53%, 94% and 86% in RCA, LAD, and LCX respectively. On perfusion+rEF, accuracy was 76%, 90% and 84% in RCA, LAD, and LCX respectively. Specificity in RCA was 45% on perfusion, 84% on perfusion+rEF. Sensitivity in RCA was 77% on perfusion, 54% on perfusion+rEF. LAD and LCX did not change by the addition of function image. By addition of function image, accuracy and specificity of diagnosis in area of RCA improved significantly (p<0.01). Thus the addition of function image in Tf myocardial scintigraphy would be useful to improve the diagnosis, especially in region of RCA.
PracticeClinical medicine
Keywords99mTc-tetrofosmin, Coronary artery disease, Perfusion image, Function image.

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