心向量图顺序记录了心脏电激动的瞬间空间向量,对心肌梗塞、传导阻滞、心室肥厚等的诊断价值一般均认为高于心电图。心肌梗塞时心电图虽然可出现特异性改变,但由于梗塞区可能远离探查电极的部位,使异常Q波不够明确,或者梗塞发生在除极较晚的的部位如左室后基底部而不出现Q波,以及陈旧性心肌梗塞时可能 The sequence of cardiac vector maps recorded the instantaneous space vector of cardiac electrical stimulation, the diagnostic value of myocardial infarction, conduction block, ventricular hypertrophy, etc. are generally considered higher than the ECG. Myocardial infarction ECG although there may be specific changes, but because the infarction area may be far away from the probe electrode, the abnormal Q wave is not clear enough, or infarction occurs in the late depolarization sites such as the left ventricular base without Q Waves, as well as old myocardial infarction may be