| Japanese |
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| Title | 201Tl心筋SPECT展開図表示を用いた冠動脈支配領域の定量的解析法と画像表示法の開発 (第2報) - 臨床診断における有用性の検討 - |
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| Subtitle | 《原著》 |
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| Authors | 植原敏勇*, 西村恒彦*, 片渕哲朗*, 山上英利*, 汲田伸一郎*, 林田孝平*, 松尾剛志*, 林真* |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放射線診療部 |
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| Journal | 核医学 |
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| Volume | 27 |
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| Number | 6 |
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| Page | 579-591 |
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| Year/Month | 1990/6 |
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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」冠動脈1枝障害54例を用いて201TlCl心筋SPECT展開図表示を作成し, これらを各冠動脈疾患別に加算し標準化することにより, 各冠動脈の領域マップを作成した. さらに臨床例104例(正常10例, 冠動脈1枝障害52例, 2枝障害32例, 3枝障害10例)を対象に, 心筋Planar, SPECT視覚診断, 展開図Raw Map(Pixel CT), Extent・Severity map, 冠動脈領域マップを用いた定量診断の診断精度を比較検討した. この結果, 冠動脈1枝・2枝障害では展開図領域マップの診断精度は高く, 特に冠動脈左回旋枝病変の正確な診断に有用であった. 一方, 冠動脈3枝病変ではPlanar, SPECT視覚診断がいずれの展開図診断よりも優れており, 肺野・心筋への201TlCl集積の程度判定が3枝病変の診断には有用と考えられた. また検者間の診断の一致率の検討より, 領域マップは客観性に優れていると考えられた. また, 心筋SPECT長軸断層像の心尖部の定量解析を加えて作成した心尖部表示を加えた展開図診断は, 冠動脈左前下行枝病変の検出のみならず, 右冠動脈1枝病変のSpecificityの向上にも有用であった. |
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| Practice | 臨床医学：一般 |
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| Keywords | Tl-201 myocardial SPECT, Unfolded map, Coronary artery territory map, Coronary artery disease. |
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| English |
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| Title | Clinical Evaluation of Coronary Territory Map by Using Unfolded Map of Tl-201 Myocardial SPECT |
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| Subtitle | - Original Articles - |
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| Authors | Toshiisa UEHARA, Tsunehiko NISHIMURA, Tetsuro KATAFUCHI, Hidetoshi YAMAGAMI, Shinichirou KUMITA, Kohei HAYASHIDA, Makoto HAYASHI |
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| Authors(kana) | |
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| Organization | Department of Radiology, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 27 |
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| Number | 6 |
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| Page | 579-591 |
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| Year/Month | 1990/6 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | Coronary territory map was developed on unfolded map of exercise Tl-201 myocardial SPECT. Each coronary territory was determined by summing the each unfolded map of 54 cases of single vessel disease respectively, and standardizing with normal pattern obtained from normal patients. The diagnostic accuracy of coronary territory map to identify the diseased coronary artery was analyzed in 104 clinical cases and was compared with that of planar and SPECT visual diagnosis, simple unfolded map (raw map) and extent & severity map. The results were as follows; 1) Territory map showed excellent diagnostic accuracy in single or double vessel disease, especially in diagnosis of left circumflex coronary artery lesion. 2) In triple vessel disease, the diagnostic accuracy of territory map or other unfolded maps was 30% at best, and was inferior to planar or SPECT visual analysis. The cause of this inferiority seemed that the quantitatively analyzed map had no information about the degree of Tl-uptake into lung or myocardium, which give useful information in visual diagnosis. 3) The diagnostic agreement ratio in two observers was the highest in territory map diagnosis, so that the territory map diagnosis seemed to be the most objective one. 4) The unfolded map diagnosis with apical display obtained from long-axis tomogram was useful to diagnose left anterior descending coronary (LAD) lesion, which improve not only the sensitivity of LAD but also specificity of right coronary artery single vessel disease. |
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| Practice | Clinical medicine |
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| Keywords | Tl-201 myocardial SPECT, Unfolded map, Coronary artery territory map, Coronary artery disease. |
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