Divisional basic research focuses on the physiology of the transplanted liver including hemodynamics and metabolic function, preservation of the hepatic allograft, stereotactic access to liver lesions, and liver regeneration. Clinical research interests include intraoperative sonography for tumor staging, ablation of liver tumors, laparoscopic ultrasonography for staging liver and biliary tract disease. We also have interest in evaluating newer radiologic modalities such as PET scanning for the evaluation of solid tumors of the liver and continue to evaluate the results of intrahepatic portacaval shunting. Residents may elect to participate in these clinical or laboratory studies and are strongly encouraged to do so.