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1.急性冠脉梗阻后早期,心外膜及心前区ST段抬高值可提示前壁心肌急性缺血损伤程度及预测前壁梗塞范围。2.梗阻后24小时,心前区R波振幅的降低和/或Q波的出现及加深的程度对前壁梗塞范围具有定量价值。3.心前区ST段抬高的导联数(NST)及Q波出现的导联数(NQ)则与前壁梗塞范围的相关性欠佳。多导联ST段和QRS波标测同时应用,可提高对前壁AMI范围的定量特异性.
1. Acute coronary occlusion early, epicardial and precordial ST-segment elevation can be prompted to the extent of acute myocardial infarction anterior ischemic damage and predict the extent of anterior wall infarction. 24 hours after the obstruction, the decrease of R wave amplitude and / or the appearance and deepening degree of Q wave in precordial area have the quantitative value to the anterior infarct size. 3. The precordial ST segment elevation lead (NST) and Q-wave lead (NQ) were not correlated well with the anterior infarct size. Multi-lead ST-segment and QRS wave mapping at the same time, can improve the quantitative specificity of the AMI range of the anterior wall.