Steele P, Kirch D, LeFree M
Chest. 1976 May;69(5):672-6. doi: 10.1378/chest.69.5.672.
In recent years a number of different radionuclidic techniques have been developed to measure left ventricular volume and ejection fraction. Area-measurement concepts have been applied to static and electrocardiographically gated radionuclidic images which have resulted in accurate measurement of left ventricular end-diastolic volume (LVEDV) and ejection fraction (LVEF). Gated (end-diastolic and end-systolic) image analysis has also proven capable of detecting regional left ventricular wallmotion abnormalities in patients with coronary disease. Time-activity curves can be extracted from left ventricular images, and several dynamic techniques have been developed and have also resulted in accurate measurement of LVEDV and LVEF. Radionuclide methods are currently available which are accurate and atraumatic and consequently applicable to the serial study of patients with heart disease. In particular, several of these radionuclide methods are relatively inexpensive and should be able to be performed in most hospitals.
近年来，已经开发出多种不同的放射性核素技术来测量左心室容积和射血分数。面积测量概念已应用于静态和心电图门控放射性核素图像，从而能够准确测量左心室舒张末期容积（LVEDV）和射血分数（LVEF）。门控（舒张末期和收缩末期）图像分析也已证明能够检测冠心病患者的局部左心室壁运动异常。时间-活性曲线可以从左心室图像中提取，并且已经开发出几种动态技术，这些技术也能够准确测量LVEDV和LVEF。目前有一些放射性核素方法既准确又无创，因此适用于心脏病患者的系列研究。特别是，其中几种放射性核素方法相对便宜，应该能够在大多数医院进行。
