| Japanese |
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| Title | 心拍同期RI心血管造影法による左室容積, 駆出率の計測 - X線映画法との比較 - |
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| Subtitle | 原著 |
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| Authors | 木之下正彦*, 星野恒雄*, 友永轟*, 真城巌*, 霜野幸雄*, 楠川禮造*, 佐藤紘市**, 桑原道義***, 八村広三郎***, 北川尚男*** |
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| Organization | *天理病院循環器内科, **天理病院放射線科, ***京大工学オートメーション施設 |
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| Journal | 核医学 |
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| Volume | 12 |
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| Number | 4 |
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| Page | 393-403 |
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| Year/Month | 1975/8 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「1. 緒言」心疾患の診断, 心機能の評価に核医学的な方法が近年広く用いられるようになってきた. 左心機能の指標としての拡張終期容積, 収縮終期容積, 1回拍出量, 駆出率, asynergyは通常は左心カテーテル法によって左室造影を施行し算出される. しかし左心カテーテル法は観血的で重症の患者に頻回には施行しがたい. これに比較してラジオアイソトープを用いる方法は, 被曝量も通常の左心カテーテル法に比較して極めて少なく, 高齢者とか, 外来患者, 重症の心筋硬塞の患者にも短時間に行うことが可能である. 近年99mTcを用いてこれらの指標の測定方法が報告されてきた. Straussらは99mTc-アルブミンを末梢静脈に静注後血管内に均等に平衡後, シンチレーションカメラを心電図と同期させ, 左心室のシンチグラムを得ている. 我々の方法は99mTcO4-を末梢静脈に急速静注後, それが左心室を通過する際, 収縮終期と拡張終期の数拍の重合像をフィルムに撮影した. |
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| Practice | 臨床医学：一般 |
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| English |
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| Title | Measurement of Left Ventricular Volume and Ejection Fraction by Ecg-Gated RI Angiocardiography - The Comparison with X-Ray Cineangiographic Measurement - |
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| Subtitle | Original Articles |
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| Authors | Masahiko KINOSHITA*, Tsuneo HOSHINO*, Goh TOMONAGA*, Iwao MASHIRO*, Yukio SHIMONO*, Reizo KUSUKAWA*, Kouichi SATO**, Michiyoshi KUWAHARA***, Kouzaburo HACHIMURA***, Hishao KITAGAWA*** |
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| Organization | *Division of Cardiology, Tenri Hospital, **Division of Radioisotopes, Department of Radiology, Tenri Hospital, ***Automation Institute, Department of Engineering, Kyoto University |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 12 |
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| Number | 4 |
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| Page | 393-403 |
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| Year/Month | 1975/8 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Left ventricular volume and ejection fraction were determined in twenty patients with various heart deseases by both ECG-gated RI angiocardiographic and X-ray cineangiographic methods to compare them. The output of the Anger scintillation camera was recorded on the VTR with frequency modulated signals of R wave of ECG. On the replay enddiastolic and endsystolic left ventricular images are displayed on the persistence scope and photographed on polaroid film. Left ventricular images are outlined as the conventional X-ray cineangiogram. Left ventricular volume was calculated from the area and length method. The comparison between RI and cineangiographic studies shows correlation coefficients of 0.97, 0.92, 0.95, 0.94, 0.86, and 0.87 for left ventricular area, length, endsystolic (ESV) , enddiastolic volume (EDV) , stroke volume (SV) and ejection fraction (EJ) , respectively. All of the correlation coefficients are statistically significant at the level of 0.1%. The RI left ventriculograms in two patients with idiopathic hypertrophic subaortic stenosis show the same findings of the abnormal end-diastolic contour as the cineangiogram. Repeated calculation of left ventricular volume and ejection fraction from the same angiograms of six patients shows correlation coefficients of 0.98 and 0.97, respectively, indicating an adequate reproducibility for this technique. This RI-angiographic method is noninvasive and can be safely and repeatedly performed in severely ill patients, and can give the comparable values for EDV, SV, and EF as the cineangiographic method. |
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| Practice | Clinical medicine |
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