echocardiography: systolic peak time-velocity integral (TVI) of aortic valve with stress
echocardiography: systolic peak time-velocity integral (tvi) of aortic valve with stress
echocardiography: systolic peak time-velocity integral (TVI) of aortic valve with stress
echocardiography: systolic peak time-velocity integral (tvi) of aortic valve with stress