Fig. 5

CT images of hepatic vascular anatomy at three different delay times in cats. Hepatic arteries (red arrow) and partly enhanced portal vein lumens were seen in the arterial phase (a). In the portal venous phase (b), portal vein (red triangles) branches were hyperenhanced, whereas in the portal phase (c), the contrast agents were transferred to hepatic veins (red triangle). CT images were analyzed in a soft tissue window (W/L: 400/40)