echocardiography: atrial reversal time-velocity integral (TVI) of distal right pulmonary vein
echocardiography: atrial reversal time-velocity integral (tvi) of distal right pulmonary vein
echocardiography: atrial reversal time-velocity integral (TVI) of distal right pulmonary vein (procedure)
echocardiography: atrial reversal time-velocity integral (tvi) of distal right pulmonary vein (procedure)