过去,用常规心电图(ECG)方法只能确定在发生急性心肌梗塞(AMI)时,有否梗塞存在及明确梗塞的部位,不能作梗塞范围大小的定量分析。晚近,用常规ECG导联进行QRS波群标测,可计算出在AMI时的梗塞范围(IS)大小和左室射血分数(LVEF)。1983年由Seino等。标测结果表明,在AMI时,QR S积分与IS和LVEF明显相关:梗塞大小(CK·g·Eq)=5.24Q RS积分+8.50(r=0.72,P<0.001),LVEF(%)=-2.16 QRS积分+59.58(r=-0.71,P<0.001)。从方法学的角度来看,此公式已得到国外广大学者确认,但国内尚未用于临床,我科按Seino等的标测方法,对50例正常人、50例无心肌梗塞(MI)的冠心病患者及30例 In the past, conventional electrocardiographic (ECG) methods were only able to determine whether there was an infarction in the presence of acute myocardial infarction (AMI) and a clear infarct, and no quantitative analysis of infarct size could be made. Recently, QRS complex mapping with conventional ECG leads was used to calculate infarct size (IS) and left ventricular ejection fraction (LVEF) at AMI. 1983 by Seino et al. The mapping results showed that at AMI, QRS score was significantly associated with IS and LVEF: infarct size (CK · g · Eq) = 5.24Q RS +8.50 (r = 0.72, P <0.001), LVEF -2.16 QRS score +59.58 (r = -0.71, P <0.001). From a methodological point of view, this formula has been confirmed by foreign scholars, but the country has not yet been used clinically, our department by Seino and other mapping methods, 50 normal subjects, 50 patients without myocardial infarction (MI) crown Heart disease patients and 30 cases