1. Right portal vein.
4. Splenic vein.
2. Left portal vein.
5. Superior mesenteric vein.
3. Main portal vein.
6. Inferior mesenteric vein.
Figure 3-13. Portal venogram showing the portal vein and tributaries injected
with the contrast solution.
e. Splenoportography (Percutaneous).
(a) General anesthesia may be administered either in the operating
room or in the designated x-ray room. Only the latter situation will be described here.