Spectral doppler US of the left, middle and right hepatic veins from 2 days ago (left) shows them to be of normal caliber and to have normal appearing phasicity. Spectral doppler US of the left, middle, and right hepatic veins today (right) shows the hepatic veins to be compressed and difficult to see and to have spectral broadening and loss of phasicity. The flow velocity in the main portal vein had decreased by 50% between the two exams.
