Tricuspid annulus peak systolic excursion (TAPSE)
TAPSE had similar performance as S’ in our study and was slightly more
accurate than S’ in patients with severe RV dysfunction
(AUCTAPSE 0.673 > AUCS’0.652). TAPSE is also readily obtainable, and has modest correlation
with RVEF, 2D RV FAC and 2D RV EF although it measures the longitudinal
function. TAPSE is a simple and straightforward measurement that doesn’t
require optimal image quality and time-consuming image analysis. Similar
to S’, TAPSE assumes that the basal and adjacent segment displacement in
the four-chamber view represents the entire RV function, which may not
be valid in several disease states and regional RV wall motion
abnormalities. In other words, TAPSE is comparatively load- and angle
dependent, can subject to cardiac translation and is the least user
dependent parameter for RV function assessment.