Two-dimensional transthoracic echocardiogram (2D TTE) and M mode from the apical 4 chamber view showing TAPSE measurement

Tricuspid annular plane systolic excursion (TAPSE) is measured in the apical four-chamber view by placing an M-mode cursor on the lateral tricuspid annulus and measuring the peak distance travelled by this reference point during systole. A greater distance travelled during systole implies greater right ventricular systolic function, with the normal reference limit being a TAPSE of ≥1.7 cm.