fig14

Figure 14. Echo frames from parasternal 2D and Doppler study illustrating tricuspid regurgitant jet (TRJ) by color flow imaging in (A) and by continuous wave Doppler in (B). The magnitude of TRJ is used for the calculation of systolic pressure in the pulmonary artery. The recorded peak velocity of 3.74 m/s by modified Bernoulli equation is calculated to be 56 mmHg gradient (see insert in B). 5 mmHg is presumed right atrial (RA) pressure and should be added to this value. Right ventricle (RV) is labeled. Reproduced from Ref.^[19].