Pathphysiolgical analysis of ischemic heart diease by echocardiography.

二维超声心动图在非侵入性心脏检查中发挥着重要作用，近年来已被应用于心功能的定量分析，利用数字技术和计算机系统，以及许多图像处理技术，利用计算机检测左心室的边界。利用临床设计的二维超声心动图微处理器图像处理系统，可在短时间内获得左室壁边界和多种定量的心脏参数。在这些参数中，左室壁收缩时的节段性收缩对评价缺血性心脏病的心功能是有用的。

Two-dimensional echocardiography playing an important role in non-invasive cardiac examination has recently been applied to quantitative analysis of cardiac functions taking digital techniques and a computer system into consideration, and many image processing techniques using the computer to detect bounderies of the left ventricle. By using microprocesser based image processing system for two-dimensional echocardiography designed for clinical use, left vetnricular boundaries and several kinds of quantitative cardiac parameters was obtained in short time. Among those parameters, the segmental shotening during systole along the left ventricular wall was found to be usefull in assessing the cardiac function in ishemic heart diease.