echocardiography: atrial reversal time-velocity integral (TVI) of superior vena cava at end of inspiration
echocardiography: atrial reversal time-velocity integral (tvi) of superior vena cava at end of inspiration
echocardiogram superior vena cava flow velocity atrial reversal time velocity integrals end inspiration
echocardiogram superior vena cava flow velocity atrial reversal time velocity integrals end inspiration