Figure 2
From: Echocardiographic assessment of pulmonary vascular resistance in pulmonary arterial hypertension
Bland Altman analysis showing the limits of agreement between PVR obtained by catheterization and PVR obtained by echocardiography with TVI rvot (Panel A) and with TVI lvot (Panel B). PVR = Pulmonary vascular resistance; TRV/TVI lvot = Peak tricuspid regurgitant velocity/Left ventricular outflow tract time-velocity integral; TRV/TVI rvot = Peak tricuspid regurgitant velocity/Right ventricular outflow tract time-velocity integral; WU = Wood units.