| Japanese |
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| Title | 運動負荷タリウム心筋スキャンにおける定量解析立体表示法 - Quantitative STEREO-VIEW法の開発とその臨床応用 - |
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| Subtitle | ≪原著≫ |
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| Authors | 松田宏史*, 村田啓*, 外山比南子**, 西村重敬***, 加藤健一*** |
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| Organization | *虎の門病院放射線科, **東京都老人総合研究所, ***虎の門病院循環器センター |
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| Journal | 核医学 |
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| Volume | 26 |
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| Number | 7 |
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| Page | 845-854 |
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| Year/Month | 1989/7 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」運動負荷Tl心筋SPECTの立体表示定量解析法: Quantitative STEREO-VIEW法(STEREO-VIEW法)を開発し, 臨床応用を試みた. SPECT短軸断像より等計数法により各断面の左室壁輪郭を求め左室心筋の立体像を再構築し, 左室全体を510の領域に分割し表示した. 各領域の平均Tl計数値より%Tl uptakeおよびwashout rate (WR)を算出し, これらの値をもとに梗塞域表示, 再分布表示, WR表示を行った. さらに各領域のWR値より虚血領域の広さや強さの程度を指数化した(extent index, severity index, intensity index). 血行再建を施行した25例では各指数の改善度はdouble productの改善度と有意に相関した(p<0.01). STEREO-VIEW法はTl心筋SPECT像を個々の症例の実際の左室心筋により近い立体像に再構築することにより病変の広がりを把握しやすくし判定を容易にした. さらにWRを用いた虚血領域の指数化は冠血流の良い指標であり臨床応用が十分可能と考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Stress thallium myocardial imaging, SPECT, Quantitative STEREO-VIEW method, Coronary artery disease, Washout rate. |
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| English |
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| Title | Development of a New Quantitative Analysis for Thallium Myocardial SPECT Images - Quantitative STEREO-VIEW Method and Evaluation of its Clinical usefulness - |
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| Subtitle | - Original Articles - |
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| Authors | Hirofumi MATSUDA*, Hajime MURATA*, Hinako TOYAMA***, Shigeyuki NISHIMURA**, Kenichi KATOH** |
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| Authors(kana) | |
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| Organization | *Division of Nuclear Medicine, **Cardiovascular Center, Toranomon Hospital, ***Tokyo Metropolitan Institute of Gerontology |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 26 |
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| Number | 7 |
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| Page | 845-854 |
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| Year/Month | 1989/7 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] We have developed a three-dimensional quantitative display method, Quantitative STEREO-VIEW method (STEREO-VIEW method), for analysis of thallium (Tl) myocardial SPECT images and have evaluated its clinical usefulness. SPECT data were obtained immediatery and 4 hours after the exercise, and contour lines for outer edges of left ventricular (LV) myocardium were detected from 10 slices of short axial images in delayed scan. LV wall was devided into 510 segments by dividing each slice into 51 sectors and LV myocardium was three-dimensionally reconstructed. Mean Tl counts, %Tl uptake and washout rate (WR) of each segment were calculated and these values were represented such as infarcted area display, redistribution display and WR display on STEREO-VIEW. Furthermore, extent index (EI), severity index (SI) and intensity index (II) were defined to express the degree of perfusion abnormality using WR value of each segment. In the 25 patients with coronary revascularization, improving rate of these indices correlated well with that of double product significantly. STEREO-VIEW method resembled in the original shape of left ventricle of each patient, so STEREO-VIEW method has made it easier to discriminate the accurate extent of ischemic lesion. In addition, EI, SI and II using WR were good indices for coronary perfusion and these were thought to be useful on clinical study. |
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| Practice | Clinical medicine |
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| Keywords | Stress thallium myocardial imaging, SPECT, Quantitative STEREO-VIEW method, Coronary artery disease, Washout rate. |
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