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对心肌梗塞病人33例在同一天内用放射性核素心室显影及M 型超声心动图法来测定左室射血分数(LVEF),将γ-照像机自动显示的LVEF 与用M 型超声心动图观察时所用三种不同的方法计算出的LVEF 相比较,以EF 斜率法的相关性最好,r=0.78,P<0.01。
33 cases of myocardial infarction in the same day with radionuclide ventricular imaging and M-mode echocardiography to measure left ventricular ejection fraction (LVEF), γ-camera automatically displayed by LVEF and M-mode echocardiography Compared with the LVEF calculated by three different methods used in the observation, the EF slope method had the best correlation (r = 0.78, P <0.01).