Figure 1

Six-segmental models were created using a tracking algorithm after manual delineation of the endocardial border in the LV apical 4-chamber view (A) and RV apical 4-chamber view (B), and the short axis view for the left ventricular circumferential and radial functional measurements (C). Right bottom panel shows time-strain curves RV apical 4-chamber view for the assessment of longitudinal myocardial systolic function. Solid colored lines indicate corresponding segmental strain curves, and the white dotted line indicates global strain curves (D).