Correlations between echocardiographic parameters and hemodynamics.

TAPSE, tricuspid annual plane systolic excursion; S’, tricuspid annular systolic excursion velocity; IVA, right ventricular isovolumic acceleration; RVFAC, right ventricular fraction area change; RVMPI, right ventricular myocardial performance index; RVETD/LVETD, ratio of right ventricular transverse diameter to left ventricular transverse diameter; PVR, pulmonary vascular resistance; mPAP, mean pulmonary arterial pressure; mRAP, mean right atrial pressure.三尖瓣环收缩期位移（Tricuspid Annular Plane Systolic Excursion, TAPSE）；三尖瓣环收缩期运动速度（Tricuspid Annular Systolic Excursion Velocity, S’）；右心室等容加速度（Right Ventricular Isovolumic Acceleration, IVA）；右心室面积分数变化（Right Ventricular Fraction Area Change, RVFAC）；右心室心肌性能指数（Right Ventricular Myocardial Performance Index, RVMPI）；右心室横径与左心室横径比值（Ratio of Right Ventricular Transverse Diameter to Left Ventricular Transverse Diameter, RVETD/LVETD）；肺血管阻力（Pulmonary Vascular Resistance, PVR）；平均肺动脉压（Mean Pulmonary Arterial Pressure, mPAP）；平均右心房压（Mean Right Atrial Pressure, mRAP）