echocardiography: diastolic inflow time-velocity integral (TVI) for mitral valve at rest
echocardiography: diastolic inflow time-velocity integral (tvi) for mitral valve at rest
echocardiography: diastolic inflow time-velocity integral (TVI) for mitral valve at rest
echocardiography: diastolic inflow time-velocity integral (tvi) for mitral valve at rest