Left-to-Right Chamber Volume Ratios at Cardiac MRI Predict Cardiac Events: A Multi-Ethnic Study of Atherosclerosis Secondary Analysis

A high left-to-right heart chamber volume ratio—specifically, a left-to-right ventricular volume ratio (LRVR) greater than 1.3 and a left-to-right atrial volume ratio greater than 2—was independently associated with increased risk of heart failure and atrial fibrillation, with LRVR also predicting mortality.