echocardiography: systolic regurgitant time-velocity integral (TVI) of tricuspid valve
echocardiography: systolic regurgitant time-velocity integral (tvi) of tricuspid valve
echocardiography: systolic regurgitant time-velocity integral (TVI) of tricuspid valve (procedure)
echocardiography: systolic regurgitant time-velocity integral (tvi) of tricuspid valve (procedure)