The electrocardiogram of coronary artery disease will provide indirect information about the presence, extent and severity of some coronary artery diseases. Recent studies have analyzed ST segment changes to provide useful information in acute coronary syndromes and myocardial infarction.

Electrocardiography is a valuable medical technique used to diagnose and localize coronary artery obstruction in myocardial ischemia. On the other hand, electrocardiography also plays an important role in monitoring and evaluating the progress of coronary revascularization in ST-elevation myocardial infarction.