| Japanese |
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| Title | 左心・右心駆出カウント比による逆流率, 短絡率の測定 |
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| Subtitle | 原著 |
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| Authors | 足立晴彦*, 大友敏行***, 鳥居幸雄**, 宮永一*, 岡本那雄*, 石津徹幸**, 高木研二***, 勝目紘*, 国重宏***, 落合正和**, 伊地知浜夫* |
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| Authors(kana) | |
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| Organization | *京都府立医科大学第二内科, RI室, **京都府立洛東病院循環器内科, RI室, ***松下病院第三内科, RI室 |
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| Journal | 核医学 |
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| Volume | 18 |
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| Number | 6 |
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| Page | 821-824 |
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| Year/Month | 1981/7 |
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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」大動脈弁, 僧帽弁閉鎖不全症における逆流率および心房中隔欠損症における短絡率を平衡時心電図同期心プールシンチグラムより測定する方法を工夫した. 左心室・右心室の放射能測定係数を正常対照者で求めた平均値1.48を採用すると, 左心室, 右心室の駆出カウント比(SC ratio)から, 逆流率RF=1-1.48/SC ratio, 短絡率SR =1-SC ratio/1.48で求められる. 本法と観血的方法で求めた値は近似し, これらの疾患の非観血的定量診断を行う上で有用と考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | ECG gated radionuclide angiocardiography, Stroke count ratio, Valvular regurgitation, Shunt ratio |
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| English |
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| Title | Measurement of Regurgitant Fraction and Shunt Ratio by Left and Right Ventricular Stroke Count Ratio |
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| Subtitle | Original Articles |
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| Authors | Haruhiko ADACHI*, Toshiyuki OHTOMO***, Yukio TORII**, Hajime MIYANAGA*, Kunio OKAMOTO*, Tetsuyuki ISHIZU**, Kenji TAKAGI***, Hiroshi KATSUME*, Hiroshi KUNISHIGE***, Masakazu OCHIAI**, Hamao IJICHI* |
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| Authors(kana) | |
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| Organization | *Kyoto Prefectural University of Medicine, Dept. of Medicine, **Kyoto Prefectural Rakuto Hospital, Cardiovascular Division, ***Matsushita Hospital, Dept. of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 18 |
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| Number | 6 |
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| Page | 821-824 |
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| Year/Month | 1981/7 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Quantitative assessment of aortic or mitral regurgitation and cardiac shunt in atrial septal defect is not so easy and usually based on clinical evaluation, supplemented by indirect techniques. For a more precise evaluation, a simultaneous measurement and a comparison of stroke volumes determined by cardiac catheterization and angiography are required. The stroke count ratio (SC ratio) for left and right ventricular end-diastolic, end-systolic count differences obtained from LAO multigated cardiac blood pool scintigram, was used to determine valvular regurgitant fraction or shunt ratio. Regurgitant fraction (RF) or shunt ratio (SR) was given by the formula: RF=1-1.48/SC ratio, SR=1-SC ratio/1.48. These were derived by assuming that an excess of stroke counts was due to regurgitant or shunt flow, and that the coefficient in counting ventricular radioactivity was 1.48, which was adopted mean value of SC ratio in normal subjects. Agreement was found between RF or SR obtained by this formula and by the invasive method. This technique may be useful for non-invasive and quantitative assessment of the severity of valvular regurgitation and cardiac shunt. |
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| Practice | Clinical medicine |
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| Keywords | ECG gated radionuclide angiocardiography, Stroke count ratio, Valvular regurgitation, Shunt ratio |
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