Fig. 1

Overview of the biventricular atlas construction. A Contours and landmarks on short and long axis cardiovascular magnetic resonance (CMR) images at end-diastole; B model fit at end-diastole (ED) (left) and end-systole (ES) (right). The left ventricle (LV) is shown in green, the right ventricle (RV) is shown in blue and the epicardium is shown in maroon; C endocardial surface colors showing differences in shape at ED (left) and ES (right) from the mean (25.5 ml/m²) to high (40 ml/m²) pulmonary regurgitant volume index (PRVI). Scale bar is in mm. Red denotes displacement outward from the LV, and blue denotes displacement inward to the LV