目的:参照冠状动脉造影(CAG)结果,观察12导联动态心电图(DCG)对冠心病的临床诊断价值。方法:对232例冠状动脉造影的患者,分析DCG对冠心病的诊断价值。结果:12导联动态心电图与冠状动脉造影诊断其敏感性73.6%,特异性79.7%DCG诊断冠状动脉单支、双支、三支病变符合率分别为48.7%、95.4%、100%。结论:12导联动态心电图对冠心病诊断的敏感性及特异性较高、且具有优越性,有一定的临床应用价值。 Objective: To evaluate the clinical value of 12-lead ambulatory electrocardiogram (DCG) in the diagnosis of coronary heart disease (CHD) with reference to coronary angiography (CAG). Methods: 232 cases of coronary angiography in patients with coronary heart disease, DCG diagnostic value. Results: The diagnostic accuracy of 12-lead ambulatory electrocardiogram and coronary angiography was 73.6%. The coincidence rates of single-vessel, double-vessel and triple-vessel disease of coronary artery with DCG of 79.7% were 48.7%, 95.4% and 100% respectively. Conclusion: The 12-lead ambulatory electrocardiogram has a high sensitivity and specificity for the diagnosis of coronary heart disease, and has advantages and has certain clinical value.