| Japanese |
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| Title | 81mKrおよびシングルプローブシステム (核聴診器) を用いた右心機能の評価 |
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| Subtitle | 原著 |
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| Authors | 西村恒彦*, 植原敏勇*, 林田孝平*, 大嶺広海*, 木村元政*, 林真*, 山田幸典*, 小塚隆弘* |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放診部 |
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| Journal | 核医学 |
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| Volume | 19 |
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| Number | 10 |
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| Page | 1543-1550 |
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| Year/Month | 1982/12 |
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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」 81mKrと核聴診器を用いて連続的に右心機能を測定する方法を開発した. 81mKrは, 持続注入法とし, 肘静脈より注入, 本装置の有するposition/monitor modeを用いて検出器を移動させながら, 右室, バックグウンドを正確に設定, 次いで右室駆出分画 (RVEF) を算出した. 核聴診器によるRVEFはposition/monitor mode, ventricular function modeにてr = 0.88 (16症例) と良好な相関を示した. また, カメラコンピュータシステムによるマルチゲート法によるRVEFとはr = 0.74 (11症例) の相関であった. なお, カメラコンピュータシステムによるファーストパス法で求めたRVEFと, 核聴診器およびマルチゲート法との相関は, それぞれ0.68( 16症例), 0.87 (11症例) であった. 核聴診器によるRVEFの算出は, 他法と比較しても良好な相関を示したが, ファーストパス法に比し, 三尖弁の動きなどを考慮しないため多少低値を示した. また, 本法を用いて, 負荷前後におけるRVEFの変動, 不整脈における右室容積の変動など2〜3の臨床応用を行った. |
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| Practice | 臨床医学：一般 |
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| Keywords | 81mKr infusion method, nuclear stethoscope, right ventricular ejection fraction, beat-to-beat right ventricular function |
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| English |
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| Title | Monitoring of Right Ventricular Function by Single Probe System (Nuclear Stethoscope) and 81mKr |
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| Subtitle | Original Articles |
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| Authors | Tsunehiko NISHIMURA, Toshiisa UEHARA, Kohei HAYASHIDA, Hiromi OHMINE, Motomasa KIMURA, Makoto HAYASHI, Yukinori YAMADA, Takahiro KOZUKA |
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| Authors(kana) | |
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| Organization | Division of Nuclear Medicine, Department of Radiology, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 19 |
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| Number | 10 |
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| Page | 1543-1550 |
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| Year/Month | 1982/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] A single probe system (nuclear stethoscope) was developed to evaluate the monitoring of right ventricular function by 81mKr continuous infusion method. Optimal right ventricular and background positions were determined by position/monitor mode on beat-to-beat basis, and right ventricular ejection fraction (RVEF) was calculated by multi-gated method (MUGA). The correlation coefficient of nuclear stethoscope RVEF and camera-computer RVEF (MUGA) was 0.82, while the correlation coefficient of nuclear stethoscope RVEF and camera-computer RVEF (first-pass method) was 0.64. Therefore, the RVEF by nuclear stethoscope is useful for monitoring of right ventricular function. Clinical applications by 81mKr and nuclear stethoscope were as follows. 1. Exercise/rest RVEF is an extremely sensitive indicator to discriminate coronary artery disease (RCA occlusion) from normal subjects. 2. Beat-to-beat right ventricular volume response is useful for the monitoring of arrythmia such as atrial fibrillation. |
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| Practice | Clinical medicine |
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| Keywords | 81mKr infusion method, nuclear stethoscope, right ventricular ejection fraction, beat-to-beat right ventricular function |
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