Figure 1. Methods of analysis of right ventricular (RV) structures and RV function. (A) RV dimension is measured at the basal level in the four-chamber view. RV fractional area change can be calculated as (RV end-diastolic area [RVEDA] - RV end-systolic area [RVESA]) / RVEDA × 100) and, is a simple way to evaluate RV systolic function. (B) RV thickness more than 5 mm is suspicious of RV hypertrophy secondary to pulmonary hypertension. (C) Tricuspid annular plane systolic excursion (TAPSE) is the distance of the tricuspid annulus during the cardiac cycle using M-mode. (D) The peak systolic velocity of the lateral tricuspid annulus (S′) is measured by pulsed tissue Doppler imaging.