echocardiography: peak diastolic velocity from time-velocity integral (TVI) of superior vena cava at end of inspiration
echocardiography: peak diastolic velocity from time-velocity integral (tvi) of superior vena cava at end of inspiration
echocardiogram superior vena cava peak diastolic velocity from TVI at end inspiration
echocardiogram superior vena cava peak diastolic velocity from tvi at end inspiration