心脏可视为一个容积导体中的电源,其动作电位通过胸部组织传至体表。多年来人们做了大量试验研究,证明体表电位可以代表心脏激动,并且用心电图及心向量图记录这种电位以诊断各种疾病。70多年来,常规12导联心电图在诊断疾病上积累了丰富的经验,这是任何人也不否认的。但近年有人发现常规心电图的导联太少,测定部位太局限,于是提出多电极快速记录心电的方法,称为体表等电位标测(Body Surface Isopotential Maps或BSM)。追溯BSM的历史,在本世纪初就有人想象过这种检查。到1950年,Nahum进行了体表多导联标测,1962年后,Taccardi在人和 The heart can be thought of as a power source in a volume conductor that transmits its action potential to the body surface through the breast tissue. Over the years people have done a large number of experimental studies have shown that the body surface potential can represent cardiac agitation, and the use of electrocardiogram and cardiac vector chart record this potential to diagnose various diseases. For more than 70 years, conventional 12-lead ECG has accumulated rich experience in the diagnosis of disease, no one denied it. However, in recent years, it has been found that there are too few leads in the conventional ECG and the measurement site is too limited. Therefore, a multi-electrode rapid ECG recording method is called Body Surface Isopotential Maps (BSM). Tracing the history of the BSM, it was imagined by the beginning of this century. By 1950, Nahum conducted surface multi-lead mapping, after 1962, Taccardi in human and