目前,在测定各种心脏病的左心功能上,左室射血分数(LVEF)是良好的指标。在能获得高度精密资料的核医学方法中,有γ照相机、电子计算机的心电图门电路法,但其装置庞大而昂贵。简易而轻便的装置有作者曾报告的心脏探测系统(Cardiac Probe System)。现在,作者介绍小型的核听诊器(Nuclear Stethoscope)的临床应用价值。 Currently, left ventricular ejection fraction (LVEF) is a good indicator of left ventricular function for various heart diseases. Among the nuclear medicine methods that can obtain highly accurate data are gamma camera and electronic computer electrocardiogram gating circuit method, but the device is huge and expensive. The simple and lightweight device is the Cardiac Probe System that the authors have previously reported. Now, the author introduces the clinical value of a small nuclear Stethoscope.