| Japanese |
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| Title | 運動負荷心筋スキャンによる右室梗塞の特徴と臨床像 |
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| Subtitle | 原著 |
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| Authors | 千葉博*, 西村恒彦*, 植原敏勇*, 林田孝平*, 三谷勇雄*, 松尾剛志*, 土師一夫**, 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射線診療部, **心臓内科 |
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| Journal | 核医学 |
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| Volume | 25 |
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| Number | 12 |
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| Page | 1353-1361 |
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| Year/Month | 1988/12 |
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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」 右室梗塞27例を含む後下壁梗塞77例について運動負荷心筋スキャンを行い, その特徴と臨床像を検討した. 正面像での後壁中隔の恒久的欠損を認めるものをA群(n=34), 同部位への再分布を認めるものをB群(n=23), 後壁中隔の欠損を認めないものをC群(n=20)とすると, 右室梗塞の74%がA群, 26%がB群であり, C群はいなかった. A群はB, C群に比し急性期血行動態は右心不全を呈し, 慢性期両心機能も低下傾向であった. 初期分布像での右室の描出度により0〜2度に分類し, 最も右室の良く描出される2度において, 右室自由壁の欠損を認めるものを2D(+)群, 欠損を認めないものを2D(-)群とすると, 右室梗塞の30%が2D(+)群であり, 下壁梗塞の10%に比し有意に多かった(P<0.05). また2D(+)群は他の群に比し右冠動脈近位部病変の割合が70%と最も多かった. 後壁中隔の恒久的欠損と, 右室自由壁の欠損を有するものは9例あり, 右室梗塞の22%がこの所見を有し, 下壁梗塞の6%に比し有意に多かった(p<0.01). これら9例は, 右冠動脈近位部病変を多く有し, 梗塞サイズが大きく, 急性期には右心不全を, 慢性期には両心機能の低下を認め, 肺野TlCl-201の異常集積例も多いのが特徴で, 後下壁梗塞の中でも最もhigh risk groupと考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Right ventricular myocardial infarction, Stress thallium scan |
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| English |
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| Title | Stress Thallium Scan in Right Ventricular Myocardial Infarction : Relation to Clinical Findings |
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| Subtitle | |
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| Authors | Hiroshi CHIBA*, Tsunehiko NISHIMURA*, Toshiisa UEHARA*, Kouhei HAYASHIDA*, Isao MITANI*, Takeshi MATSUO*, Tetsuya SUMIYOSHI**, Kazuo HAZE** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **Department of Cardiology, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 25 |
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| Number | 12 |
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| Page | 1353-1361 |
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| Year/Month | 1988/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Stress thallium scan was performed in 77 patients with postero-inferior infarction include of 27 patients with right ventricular myocardial infarction. In the patients with RVMI, a perfusion defect documented in the postero-septum. A perfusion defect of the right ventricle was observed more often in RVMI than inferior MI without RVMI. In the group of persistent defect of postero-septum (n=34), infarct size was large, right ventricular function was reduced in acute stage and biventricular cardiac function was reduced in chronic stage. In the group of perfusion defect of the right ventricular free wall (n=13), proximal RCA was involved, infarct size was large, right ventricular function was reduced in acute stage and biventricular cardiac function was reduced in chronic stage. The patients with scintigraphic findings of both postero-septal persistent defect and right ventricular perfusion defect (n=9) are observed more often in RVMI and are suspected of high risk group of infero-posterior myocardial infarction. |
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| Practice | Clinical medicine |
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| Keywords | Right ventricular myocardial infarction, Stress thallium scan |
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