Abstract
After the three-dimensionally angiography by computed tomography (3DCT), radical operation was performed in 67 cases of hilar-cholangiocarcinoma or gallbladder cancer. Based on deformation and constriction seen mainly through the maximum intensity projection (MIP) of 3DCT, tumor infiltration of the hepatic artery and portal vein was determined for a pre-operative diagnosis and compared with the histopathological presentation of vascular infiltration to evaluate the efficacy of 3DCT in such a pathological state. The overall accuracy, sensitivity and specificity were 79.1%. 91.7% and 76.4% for arterial infiltration and 76.1%, 80.0% and 74.5% for portal vein infiltration, respectively. All indicated a high degree of concordance with the histopathological diagnosis. The findings of the present study indicated that a diagnosis based mainly on the MIP images of 3DCT makes a significant contribution to the diagnosis of vascular invasion by hilar- cholangiocarcinoma and by gallbladder cancer.
