| Japanese |
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| Title | 平衡時 Multi-gate 法による左室逆流性弁膜疾患の逆流量の定量的評価 |
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| Subtitle | 原著 |
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| Authors | 小須田茂*, 国枝悦夫*, 高木八重子*, 久保敦司*, 橋本省三*, 北川五十雄*, 三宮敏和*, 谷正人**, 赤石誠**, 山崎元**, 半田俊之介** |
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| Organization | *慶応義塾大学医学部放射線医学教室, **内科学教室 |
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| Journal | 核医学 |
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| Volume | 20 |
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| Number | 3 |
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| Page | 257-265 |
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| Year/Month | 1983/4 |
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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」 左室逆流性弁膜疾患患者16例, 逆流・短絡を有しない各種心疾患患者54例について, 平衡時 Multigate 法により逆流分画, Regurgitant Fraction (RF) を求め, 左室逆流性弁膜疾患の逆流量の定量的評価法として RF の有用性を検討した. 逆流分画 (RF) は (左室駆出カウント量 - 右室駆出カウント量)/右室駆出カウント量として算出した. 非逆流例では85%が RF 0.5 以下 (0.29±0.28) を示し, 左室逆流性弁膜疾患例では全例が RF 0.5 以上 (1.68±0.99) を示した (p < 0.001). RF は心臓血管造影での Sellers 分類の程度を反映し, 左室逆流性弁膜疾患の手術成功例では術後のRFは正常化した. RF 測定における再現性は良好であった. 平衡時 Multi-gate 法に基づく RF は左室逆流性弁膜疾患の重症度判定および手術後の評価にきわめて有用であるとの結論を得た. |
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| Practice | 臨床医学：一般 |
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| Keywords | Left-sided valvular regurgitation, multi-gated equilibrium scintigraphy, aortic regurgitation, mitral regurgitation |
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| English |
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| Title | Quantitative Assessment of Left-sided Valvular Regurgitation by Multi-gated Equilibrium Scintigraphy |
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| Subtitle | Original Articles |
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| Authors | Shigeru KOSUDA*, Etsuo KUNIEDA*, Yaeko TAKAGI*, Atsushi KUBO*, Shozo HASHIMOTO*, Isoo KITAGAWA*, Toshikazu SANMIYA*, Masato TANI**, Makoto AKAISHI**, Hajime YAMAZAKI**, Shunnosuke HANDA** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, Keio University School of Medicine, **Department of Internal Medicine, Keio University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 20 |
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| Number | 3 |
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| Page | 257-265 |
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| Year/Month | 1983/4 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] In order to evaluate quantitatively left-sided valvular regurgitation by multi-gated equilibrium scintigraphy, regurgitant fraction (RF) was defined as following, RF = (LVCO - RVCO)/RVCO = SVR - 1. LVCO ; left ventricular count output. RVCO ; right ventricular count output. SVR ; stroke volume ratio. RF values in 70 subjects were calculated after multigated equilibrium scintigraphies were performed. In 85% of 54 subjects without regurgitation, RF was less than 0.5 (MEAN+-S.D. 0.29+-0.28). In all of 16 patients with mitral and/or aortic regurgitation, RF was more than 0.5 (MEAN+-S.D. 1.68+-0.99) (p < 0.001). Furthermore, the value of RF indicated the severity of regurgitation based on Sellers' criteria determined by contrast angiography. After successful valve replacement, post-operative RF reduced and were within normal values. We conclude that RF by multi-gated equilibrium scintigraphy permits noninvasive, quantitative assessment of left-sided valvular regurgitation, and RF is highly reproducible and useful for postoperative assessment in patients with valvular regurgitation. |
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| Practice | Clinical medicine |
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| Keywords | Left-sided valvular regurgitation, multi-gated equilibrium scintigraphy, aortic regurgitation, mitral regurgitation |
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