| Japanese |
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| Title | 心プールシンチグラフィによる三尖弁逆流量の絶対値算出に関する検討 |
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| Subtitle | 原著 |
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| Authors | 清水光春* |
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| Organization | *岡山大学医学部放射線医学教室 |
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| Journal | 核医学 |
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| Volume | 32 |
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| Number | 1 |
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| Page | 1-8 |
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| Year/Month | 1995/1 |
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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」平衡時心プールシンチグラフィにおけるカウントベース法を用いた容量算出法を応用し, 三尖弁逆流量の絶対値算出法を考案するとともに, 臨床例にも適用した. まず, 非逆流群56例において左室一回拍出量 (LVSV) と右室一回拍出量 (RVSV) との関係を求めたところ, 安静時r=0.881, 運動負荷時r=0.884といずれもp<0.001の有意な相関関係を認めた. 次に, 三尖弁閉鎖不全症を有するのべ27例のTR群において, 上記で得られた相関式を用いてRVSVを補正することにより, 三尖弁逆流量の絶対値 (TRV) を算出した. TRVおよび三尖弁逆流分画 (TRF) をドプラ法から求めた逆流度別に比較したところ, 少なくとも逆流度III・IV度の重症群と逆流度I度, II度の軽症群とが識別可能であった. 心プールシンチグラフィにより, 三尖弁逆流量の絶対値が算出でき, 臨床的有用性は高いと考えられる. |
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| Practice | 臨床医学：一般 |
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| Keywords | Tricuspid regurgitation, Radionuclide angiocardiography, Regurgitant volume |
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| English |
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| Title | Measurement of Tricuspid Regurgitant Volume by Radionuclide Angiocardiography |
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| Subtitle | Original Articles |
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| Authors | Mitsuharu SHIMIZU |
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| Authors(kana) | |
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| Organization | Department of Radiology, Okayama University Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 32 |
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| Number | 1 |
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| Page | 1-8 |
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| Year/Month | 1995/1 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] A method to measure the absolute tricuspid regurgitant volume (TRV) using multigated equilibrium radionuclide angiocardiography is proposed. There was a significantly positive correlation between left and right ventricular stroke volume in 56 subjects with no regurgitation at rest (r=0.881, p<0.001) and during exercise (r=0.884, p<0.001), and each regression equation was obtained. Clinical studies were obtained 27 times in 22 patients with tricuspid regurgitation (TR). TRV was calculated by correcting right ventricular stroke volume using that regression equation. Patients with severe TR (grade III・IV classified from the pulsed Doppler) were well distinguished from patients with mild TR (grade I or II) by TRV. It is concluded that this method is well applicable to clinical study and useful in quantitative analysis of TR. |
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| Practice | Clinical medicine |
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| Keywords | Tricuspid regurgitation, Radionuclide angiocardiography, Regurgitant volume |
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