| Japanese |
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| Title | Tl-201心筋シンチグラムの定量的評価への試み - Circumferential Profile法による評価 - |
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| Subtitle | 《短報》 |
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| Authors | 宮永一*, 足立晴彦*, 渡辺都美*, 古川啓三*, 松久保晴生*, 勝目紘*, 伊地知浜夫*, 鳥居幸雄**, 細羽実*** |
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| Authors(kana) | |
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| Organization | *京都府立医科大学第二内科, **京都府立洛東病院内科, ***島津製作所システム部 |
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| Journal | 核医学 |
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| Volume | 17 |
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| Number | 10 |
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| Page | 1279-1284 |
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| Year/Month | 1980/12 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「はじめに」Tl-201心筋シンチグラムは非観血的な虚血性心疾患の診断法として日常臨床に急速に普及しつつあるが, その診断は主に定性的であり検者の視覚による主観的評価である為, 経験および熟練を必要とし, その再現性にも難点が存在することは否めない. 今回著者らはmini-computorを用いCircumferential profileによる心筋像の定量的評価を試み良好な成績を得たので症例を呈示して報告する. 「対象」心疾患のない正常人対照7例, 心電図上異常Q波を有し臨床上明らかな心筋梗塞症例8例, 労作性狭心症例1例を対象とした. 「方法」安静仰臥位にて塩化Tl-201 2.0 mCiを静注約10分後より正面, 左前斜位45度, 左側面の三方向につき, 各々480秒間撮像した. 使用したカメラは高感度平行孔型コリメーターを装置したγ-カメラを用い, photo-peakは約80 KeV 25%のwindow幅に設定した. |
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| Practice | 臨床医学：一般 |
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| Keywords | Tl-201, Quantitative analysis, circumferential profile, Defect score, myocardial infarction |
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| English |
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| Title | A Quantitative Approach to the Analysis of the Thallium-201 Myocardial Scintigram (Evaluation by circumferential profile method) |
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| Subtitle | - Short Communication - |
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| Authors | Hajime MIYANAGA*, Haruhiko ADACHI*, Tomi WATANABE*, Keizo FURUKAWA*, Haruo MATUKUBO*, Hiroshi KATUME*, Hamao IJICHI*, Yukio TORII**, Minoru HOSOBA*** |
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| Authors(kana) | |
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| Organization | *Second Department of Internal Medicine, Kyoto Prefectural University of Medicine, **Second Department of Internal Medicine, Kyoto Prefectural Rakuto Hospital, ***Shimazu Co., Ltd. |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 17 |
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| Number | 10 |
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| Page | 1279-1284 |
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| Year/Month | 1980/12 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Quantitative method in the evaluation of Tl-201 myocardial image is presented. Thirty six radii are generated from the center of the left ventricular myocardial image. The average activity for matrix along each radii is calculated and normalized to the radius with highest average activity. Then graphic presentation is developed as a circumferential profile modified Burow's method. In seven normal subjects, the lower limits of normalized radial count is 70%, whereas in the patients with myocardial infarction, the values in infarcted area are less than 70%. Defect score is calculated by integrating the area under 70% level. Both a display as circumferential profile and a scoring of myocardial perfusion defect were found to be useful and reproducible not only in detection of the localization but also in quantification of myocardial ischemia. |
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| Practice | Clinical medicine |
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| Keywords | Tl-201, Quantitative analysis, circumferential profile, Defect score, myocardial infarction |
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