Figure 1. Echocardiographic images of methods for estimating mPAP. Estimation of mPAP using peak TR velocity (A); RVOTAT (B); peak and end PR velocity (C); and TR velocity TVI (D). mPAP: mean pulmonary artery pressure, PR: pulmonary regurgitation, RVOTAT: right ventricular outflow tract acceleration time, TR: tricuspid regurgitation, TVI: time velocity integral.
