Figure 7.

Apical 4-chamber view. Right ventricular (RV) tissue Doppler imaging (TDI) along the basal long axis of the RV free wall with the cursor through the lateral tricuspid annulus. Example of the pulsed-wave TDI-traced parameters tricuspid annular peak systolic velocity (S′), peak early diastolic velocity (E′), and peak late (atrial) diastolic velocity (A′) in a 10-year-old patient with pulmonary hypertension secondary to congenital heart disease. Note the reduced values of every single parameter and the dilated right cavities.