Table 1. Chronology of the Most Important Findings of Outcome Studies Assessing Perioperative Cardiac Morbidity MI = myocardial infarction; EST = electrocardiographic stress testing; RN = radionuclear scintigraphy; DT = dipyridamole thallium scintigraphy; ECG = electrocardiography; TEE = transesophageal echocardiography.