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心电向量图的应用和发展已经有几十年的历史,成为研究心脏电活动的非侵入性的有力诊断工具,为临床诊断提供了不少有价值的材料。但是,现行的三个互相垂直的面分介向量图,从数理和生理的观点来看尚存在一些不合理的问题。如: 1.心脏的电动向量是一个空间向量,在它的一个周期内以等电点为起点,各时的空间向量绕等电点运转,其矢端的连线呈一空间曲线,或稍有扭曲。在尚无实用的立体显示器的情况下,目前将它分解在三个相互垂直的平面来认识,只是一个不得已的、间接的方法。 2.以目前三个面上的定量指标作为研究心向量的主要依据,如果不是综合联系它
The application and development of ECG has decades of history and has become a powerful, noninvasive diagnostic tool for the study of cardiac electrical activity. It provides a lot of valuable materials for clinical diagnosis. However, there are still some unreasonable problems from the viewpoints of mathematics and physiology. Such as: 1. The heart of the electric vector is a space vector, in its one cycle to isoelectric point as a starting point, the space vector around the isoelectric point of operation, the vector end of the line was a spatial curve, or slightly distortion. In the absence of a practical stereoscopic display, the current understanding of breaking it down in three mutually perpendicular planes is only a last resort and indirect method. 2. With the current three quantitative indicators as the main basis for the study of the heart vector, if it is not associated with it