AIM: To compare the diagnostic value of body surface potential mapping (BSPM) and electrocardiogram (ECG) and high frequency ECG (HFECG) for coronary heart disease (CHD).
目的：比较体表电位标测(BSPM)、心电图(ECG)和高频心电图(HFECG)三种心电方法对冠心病(CHD)的诊断价值。
Objective To understand the value of coronary arteriography and body surface electrocardiogram(ECG) in the diagnosis of coronary heart diseases.
目的探讨体表心电图与冠状动脉造影在冠心病诊断中的价值。
The surface body electrocardiogram(ECG) manifestations of biatrial pacing are that P wave duration shortens, the polarity of P wave changes to negative, PR interval gets shorter correspondingly.
双房同步起搏体表心电图表现为P波时限短、负向或正负双向，PR间期相应缩短。
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