Figure 1. 49-year-old man with gastric and duodenal varices due to liver cirrhosis. (a) A partial maximum intensity projection (MIP) image of portal venous phase image (non-subtraction three-dimension magnetic resonance portography (3D-MRP)) demonstrates excellent visualization of the portal vein. The gastric varices (arrowheads) and duodenal varices (arrows) are not clearly visualized owing to enhancement of the aorta and right kidney. (b) A partial MIP image after subtraction of the arterial phase data set from the portal venous phase data set (subtraction 3D-MRP) demonstrates effective suppression of the aortic signal intensity and the right kidney enhancement, and superior visualization of portal collateral venous systems compared with (a). The portal vein is clearly depicted. (c,d) Percutaneous transhepatic portal venogram and (e) retrograde balloon occluded venogram from the left adrenal vein also shows the portal collateral venous systems.
