echocardiography: systolic peak time-velocity integral (TVI) of prosthetic aortic valve at end of expiration
echocardiography: systolic peak time-velocity integral (tvi) of prosthetic aortic valve at end of expiration
echocardiography: systolic peak time-velocity integral (TVI) of prosthetic aortic valve at end of expiration (procedure)
echocardiography: systolic peak time-velocity integral (tvi) of prosthetic aortic valve at end of expiration (procedure)