Blood flow velocity.systole.max/Blood flow velocity.diastole.max^inspiration:VelRto:Pt:Hepatic vein:Qn:US.doppler.derived
blood flow velocity.systole.max/blood flow velocity.diastole.max^inspiration:velrto:pt:hepatic vein:qn:us.doppler.derived
Hep v Vmax sys/dias insp DOP.der
hep v vmax sys/dias insp dop.der