| Japanese |
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| Title | 運動負荷心筋スキャンにおける再分布完成時間, 出現様式と冠動脈病変の関係について - 早期および晩期再分布による検討 - |
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| Subtitle | 原著 |
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| Authors | 西村恒彦*, 植原敏勇*, 林田孝平*, 小塚隆弘*, 斉藤宗靖**, 住吉徹哉** |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放診部, **内科 |
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| Journal | 核医学 |
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| Volume | 22 |
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| Number | 11 |
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| Page | 1625-1633 |
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| Year/Month | 1985/11 |
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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」 運動負荷心筋スキャンにおける再分布完成時間, 出現様式と冠動脈病変の重症度について検討した. 負荷直後の初期分布, 4時間後の晩期再分布に加え負荷30分後に早期再分布の撮像を施行した. 狭心症66例中15例 (23%) に早期再分布像にて完全再分布を認めた. その頻度は一枝病変例, 冠動脈狭窄度の低い症例に多かった. 心筋梗塞104例中3例 (3%) , および20例 (19%) にて早期および晩期再分布像にて完全再分布を認めた. その頻度は一枝病変例, 側副血行路の良好な例に多かった. 一方, 不完全再分布, 再分布なしは26例 (25%) , 55例 (53%) に認め, 梗塞部位にてakinesisあるいはdyskinesisを示す症例に多かった. したがって, 再分布完成時間およびその出現様式は, 虚血の重症度, 心筋のviabilityの評価に有用なことが示された. とくに早期再分布は, 負荷心筋スキャンによる虚血の検出の際に初期分布の撮像の遅れが検出率に影響を与える可能性も示唆されることから, 臨床上重要である. |
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| Practice | 臨床医学：一般 |
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| Keywords | Stress thallium scan, Early and delayed redistribution, Coronary artery disease |
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| English |
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| Title | Relation of Time to Complete Redistribution and the Severity of Coronary Artery Disease : Assessment by Early and Delayed Redistribution |
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| Subtitle | Original Articles |
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| Authors | Tsunehiko NISHIMURA*, Toshiisa UEHARA*, Kohei HAYASHIDA*, Takahiro KOZUKA*, Muneyasu SAITO**, Tetsuya SUMIYOSHI** |
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| Authors(kana) | |
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| Organization | *Departments of Radiology, **Cardiac Unit, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 22 |
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| Number | 11 |
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| Page | 1625-1633 |
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| Year/Month | 1985/11 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] The relation between the severity of coronary artery disease and the time to complete redistribution (RD) was investigated in 66 patients with angina pectoris (AP) (28 SVD, 18 DVD and 20 TVD) and 104 patients with myocardial infarction (MI) (45 SVD, 36 DVD and 23 TVD) . Stress thallium scan was performed immediately, 30 minutes (early) and 4 hours (delayed) after exercise. RD was classified into three groups (complete, incomplete and no RD) . Early complete RD was observed in 15 (23%) of AP and 3 (3%) of MI cases. In both cases, the incidence of early RD was higher in SVD compared to DVD and TVD. And diffuse slow washout calculated from exercise and RD study disturbed the incidence of early RD in DVD and TVD. In the early RD cases of AP, coronary stenosis showed mild and collateral was not correlated, however, in the complete or incomplete RD of MI, coronary stenosis showed severe (>90%) and the frequency of collateral was higher compared to no RD cases. In MI cases, complete, incomplete and no RD were observed in 22%, 25% and 53%, respectively. In the latter, a-or dys-kinesis at infarct zone was often observed which showed myocardial viability. In conclusion, early RD was observed about 20% of coronary artery disease and the time to complete RD was closely related to the severity of coronary artery disease. In addition, the sensitivity for detecting transient thallium defect was influenced by the delay in beginning imaging. |
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| Practice | Clinical medicine |
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| Keywords | Stress thallium scan, Early and delayed redistribution, Coronary artery disease |
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