The impact of dilated cardiomyopathy in relation to coronary artery dimensions and left ventricle myocardial mass in a model with excluded coronary atherosclerosis.

Background: The diagnosis of dilated cardiomyopathy (DCM) requires exclusion of obstructive coronary artery disease (CAD). However, co-occurrence of DCM and non-obstructive coronary atherosclerotic plaque is frequent. Our objective was to evaluate the coronary artery dimensions and their relation to the left ventricle mass in DCM patients with excluded coronary atherosclerosis.