Figure 3b. Drawings illustrate additional techniques for treatment of type 3 gastric varices. (a) Subselective injection of EOI via a microcatheter. EOI is injected via the microcatheter, which has been navigated through a balloon catheter into the varices, and fills the varices. (b) Coil embolization of afferent gastric veins, which prevents the flow of EOI into the direct shunting vein and the portal vein. The coil is placed in the direct shunting vein via a catheter that is introduced by means of percutaneous transhepatic portal venous access or transileocolic venous access at minilaparotomy.