Figure 2. Echocardiographic methods for evaluating RV function. Assessment of MPA diameter (A); left ventricular eccentricity index (B); TAPSE (C); and RV fractional area change by measuring RVAd and RVAs for assessment of RV function (D). D1: axis parallel to interventricular septum, D2: axis perpendicular to interventricular septum, MPA: main pulmonary artery, RV: right ventricle, RVAd: RV area at diastole, RVAs: RV area at systole, TAPSE: tricuspid annular plane excursion.
