Figure 12b. Coil embolization of the gastrocaval shunt in type C gastric varices. (a) Drawing illustrates BRTO with concurrent coil embolization of the gastrocaval shunt and selective EOI injection. (b) Balloon-occluded venogram reveals that the gastrorenal shunt is contiguous with a small gastrocaval shunt (arrowheads) and other collateral draining veins. (c) On a fluoroscopic image obtained after coil embolization of the gastrocaval shunt and collateral vessels, EOI that was injected via a microcatheter is seen to fill the variceal complex well. Arrows indicate coils.