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为评价民 VCG 和 ECG 对冠心病的诊断价值,观察50例冠脉及心室造影病人的 Q 及 T 向量改变,结果向量图和心电图对前壁心肌梗塞诊断符合率分别为92.3%和53.8%;下壁梗塞分别为81.8%和45.4%。侧壁梗塞均为33.3%;向量图对心肌缺血也有较高的敏感性(86.9%)及特异性(92.4%),并优于心电图;而且假阳性各组均较低。表明向量图在诊断心肌梗塞及心肌缺血方面,均有较好的诊断效能。
To evaluate the diagnostic value of Min VCG and ECG in coronary heart disease, the changes of Q and T vector in 50 patients with coronary artery disease and ventriculography were observed. The coincidence rates of vector diagram and electrocardiogram in anterior myocardial infarction were 92.3% and 53.8% respectively. Lower wall infarction was 81.8% and 45.4% respectively. Side wall infarction was 33.3%; vector diagram of myocardial ischemia also have a high sensitivity (86.9%) and specificity (92.4%), and better than the electrocardiogram; and false positive groups were lower. Show vector diagram in the diagnosis of myocardial infarction and myocardial ischemia, have a good diagnostic performance.