Building the Liver Case 2

series 1

purple=R portal vein

green=R hepatic vein

blue=catheter from IJ through heart into IVC and hepatic vein

Contrast in this series is very low density (a gas was used-carbon dioxide). This is used because when injected into the hepatic vein, it crosses the liver substance to delineate the portal vein, allowing planning of the course of the catheter across the liver to connect the two vascular systems. Note that these images have REVERSED grey scale from the usual for radiography. Dense areas are white instead of black.