Radiology, Vol 197, 147-152, Copyright © 1995 by Radiological Society of North America

ARTICLES

Portal vein patency in candidates for liver transplantation: MR angiographic analysis

JM Silverman, L Podesta, F Villamil, L Sher, J Vierling, S Rojter, A Hoffman, R Lopez, P Rosenthal and G Woolf
Department of Radiology, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.

PURPOSE: To assess the accuracy of magnetic resonance (MR) angiography for evaluating portal vein patency in candidates for liver transplantation. MATERIALS AND METHODS: MR angiography was performed in the main portal vein and proximal confluence of the portal vein in 102 candidates for liver transplantation (64 male patients and 38 female patients aged 8 months to 74 years; mean age, 47 years). The MR angiographic results were compared with the surgical and histologic findings in the explanted liver and excised main portal vein. RESULTS: MR angiography depicted 10 portal vein clots, all of which were confirmed at transplantation. Ninety-two portal veins were patent at MR angiography, a finding that was confirmed at transplantation. One tiny chronic clot in a small, intrahepatic branch of the portal vein was not seen at MR angiography or transplantation. It was identified at histologic analysis of the explanted liver. CONCLUSION: MR angiography is accurate in the evaluation of portal vein patency.

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