Tricuspid annular plane systolic excursion (TAPSE) in M-mode obtained in the apical four chamber view. The distance between the enddiastolic (a) and end-systolic (b) represents TAPSE (2.7 cm). Panel B represents end-diastolic measurement (7.2 cm) from the apex to the tricuspid valve plane. Panel C represents the end-systolic measurement (5.9 cm) from the apex to the tricuspid valve plane. The difference between these two measurements is the 2-D TAPSE (1.3 cm). M-mode is more commonly used, but the methods yield comparable results.
Additional keywords: doppler,hemodynamics,outflow tract