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