Which of the following can be calculated from the peak tricuspid regurgitant velocity?

Peak tricuspid regurgitant velocity (TRV) allows estimation of right ventricular systolic pressure (RVSP) using the simplified Bernoulli equation: RVSP = 4 × (TRV)^2 + estimated right atrial pressure.

This measurement is important for assessing pulmonary hypertension indirectly.

Right atrial pressure is estimated separately, pulmonary artery diastolic pressure and mean pressure require additional measurements.

This application is discussed in the "Textbook of Clinical Echocardiography, 6e", Chapter on Right Heart Pressure Estimation【20:335-340†Textbook of Clinical Echocardiography】.