Tricuspid Annular Plane Systolic Excursion (TAPSE) is a scoring system that is used with non-invasive Doppler echocardiography to determine right ventricular (RV) function.Tricuspid annular plane systolic excursion (TAPSE) is a variant of the shortening fraction in the long axis. TAPSE has been shown to better correlate with RV ejection fraction, because the major contribution to RV contraction is a sliding motion of the longitudinal smaller muscle mass.TAPSE is usually performed from an apical four-chamber (A4C) window using M-mode across the annulus to evaluate longitudinal contraction . TAPSE ABOVE 16 mm is considered NORMAL ; a value Below 16 mm indicates REDUCED RV systolic function.low TAPSE value is associated with lower cardiac index and worse survival . TAPSE is based on a one-dimensional measurement and is therefore only partially representative of global RV function.
