echocardiography: systolic time-velocity integral (TVI) of distal right pulmonary vein at rest
echocardiography: systolic time-velocity integral (tvi) of distal right pulmonary vein at rest
echocardiography: systolic time-velocity integral (TVI) of distal right pulmonary vein at rest
echocardiography: systolic time-velocity integral (tvi) of distal right pulmonary vein at rest