GEOGRAPHICAL VARIATION IN ISCHEMIA SEVERITY IN PATIENTS REFERRED FOR STRESS IMAGING STUDIES: SCREENING DATA FROM THE ISCHEMIA TRIAL

Patients with moderate or severe ischemia have a heightened risk for myocardial infarction and cardiovascular death. Geographic variation in the proportion of stress myocardial perfusion imaging (MPI) and echocardiography (echo) with at least moderate ischemia is unknown. De-identified monthly MPI