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DOI: 10.1148/rg.287085067
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RadioGraphics 2008;28:1967-1982
© RSNA, 2008

EDUCATION EXHIBIT

CT of Nonneoplastic Hepatic Vascular and Perfusion Disorders1

Maha Torabi, MD, Keyanoosh Hosseinzadeh, MD, and Michael P. Federle, MD

1 From the Department of Radiology, University of Pittsburgh Medical Center (Presbyterian Campus), 200 Lothrop St, CHP MT Suite 3850, Pittsburgh, PA 15213. Recipient of a Certificate of Merit award for an education exhibit at the 2007 RSNA Annual Meeting. Received March 25, 2008; revision requested April 23; final revision received June 6; accepted June 13. All authors have no financial relationships to disclose. Address correspondence to K.H. (e-mail: hosseinzadehk{at}upmc.edu).

The unique dual blood supply of the liver (75% portal venous, 25% hepatic arterial) makes multiphase helical computed tomography (CT) a highly suitable technique for hepatic evaluation with imaging in two (arterial and portal venous) or more phases. Multiphase helical CT has become an important tool in the detection and characterization of hepatic tumors. In some situations, hemodynamic changes might mimic neoplastic or inflammatory lesions and evoke diagnostic uncertainty. To confidently identify hepatic conditions such as venous outflow obstruction (Budd-Chiari syndrome), arterioportal shunts, hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu syndrome), peliosis hepatis, passive congestion, and hepatic infarction, radiologists must be familiar with the disease-specific CT appearances and related clinical manifestations.

© RSNA, 2008






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