| Japanese |
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| Title | 心房細動における左室容積曲線算出の試み |
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| Subtitle | 短報 |
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| Authors | 湊小太郎*, 米倉義晴*, 山本和高*, 向井孝夫*, 玉木長良*, 藤田透*, 石井靖*, 平川顕名**, 鳥塚莞爾* |
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| Organization | *京都大学医学部放射線核医学科, **中央情報処理部 |
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| Journal | 核医学 |
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| Volume | 18 |
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| Number | 1 |
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| Page | 87-90 |
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| Year/Month | 1981/1 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「I. はじめに」 心臓核医学において, 左室容積曲線, いわゆるL-V Curveのガンマカメラによる作成にあたっては, 心拍同期法によつて1心拍内の活性変化をくりかえし加算して情報密度を向上させる必要がある. しかしながら, 心拍同期法は心拍周期がまちまちな不整脈に対しては適用できない. ガンマカメラに比べ感度の高いオートフルオロスコープやnon-imaging single probeすなわち核聴診器などを用いれば, 何とかbeat to beatでL-V curveを得ることができるが完全なものではない. 本報告では少し異なつた立場から, 通常のガンマカメラとミニコンピュータを利用した心房細動例の左室容積曲線算出の1つの試みについて述べる. 「2. 手法」 データの収集は99mTc-RBC投与後平衡状態において, LAO 45°にガンマカメラを設置して, リストモードで行なう. |
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| Practice | 臨床医学：一般 |
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| Keywords | LV curve, arrhythmia, data processing |
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| English |
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| Title | A Method of Measuring the L-V Curve for Atrial Fibrillation |
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| Subtitle | LV curve, arrhythmia, data processing |
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| Authors | Kotaro MINATO, Yoshiharu YONEKURA, Kazutaka YAMAMOTO, Takao MUKAI, Nagara TAMAKI, Toru FUJITA, Yasushi ISHII, Akina HIRAKAWA, Kanji TORIZUKA |
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| Authors(kana) | |
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| Organization | Department of Radiology and Nuclear Medicine, Kyoto University Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 18 |
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| Number | 1 |
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| Page | 87-90 |
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| Year/Month | 1981/1 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] One of the shortcoming for measuring a left ventricular volume curve from ECG gated RI angiocardiography is on the treatment of arrhythmia. This short communication proposes a method of obtaining the L-V curve even for artrial fibrillation. On assuming that the endodiastolic volume is a function of the preceding heart beat's period, L-V curves are accumulated according to the preceding R-R interval from list mode data in a patient with atrial fibrillation. Several kinds of accumulated L-V curves, with different initial endodiastolic volume, are obtained to be investigated. It is noted that the longer preceding R-R interval resulted in the stronger contraction with the higher ejection fraction on the L-V curve. This fact suggests that Starling principle is validated. The present method is easily implemented by a standard nuclear medicine laboratory facilities with a gamma camra and a minicomputer. |
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| Practice | Clinical medicine |
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