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概述体表等电位标测(body—surfaceisopotential mapping BSM)是近年来迅速发展起来的新技术。它所研究的对象是全胸廓表面各个瞬间心脏电位的动态变化,与常规心电图(ECG)相比,可以说BSM研究的是体表心电位变化的“总体”,而ECG只不过是该总体中的少数“样本”。两者的区别还不仅仅在于“量”的方面:BSM利用大量导联点同步描记,绘制胸廊表面等电位曲线分布图。由此可以推测心外膜电位的分
Overview Body-surface isopotential mapping (BSM) is a rapidly developing new technology in recent years. The object under study is the dynamic changes of the heart potential at each moment of the whole thoracic surface. Compared with the conventional electrocardiogram (ECG), BSM can be said to study the “total” of the change of body surface electrocardiogram, but the ECG is only the total Minority “sample”. The difference between the two lies not only in the aspect of “quantity”: BSM uses a large number of lead points to synchronously depict and draw the contour map of the chest wall surface. From this we can speculate the epicardial potential points