echocardiography: systolic time-velocity integral (TVI) of distal right pulmonary vein at end of expiration
echocardiography: systolic time-velocity integral (tvi) of distal right pulmonary vein at end of expiration
echocardiogram pulmonary veins right distal systolic TVI at end of expiration
echocardiogram pulmonary veins right distal systolic tvi at end of expiration