echocardiography: diastolic regurgitant time-velocity integral (TVI) of prosthetic mitral valve with stress
echocardiography: diastolic regurgitant time-velocity integral (tvi) of prosthetic mitral valve with stress
echocardiography: diastolic regurgitant time-velocity integral (TVI) of prosthetic mitral valve with stress (procedure)
echocardiography: diastolic regurgitant time-velocity integral (tvi) of prosthetic mitral valve with stress (procedure)