Fourteen patients with congenital biliary atresia were operated on from June 1972 to November 1980. The enhanced computed tomography with biligrafin was taken to study the intrahepatic bile ducts in postoperative state in 7 of eight patients who are alive. In 5 of these seven patients, intrahepatic bile ducts were recognized having a narrow and straight lineal configuration which is quite different from the normal. By our experience, the computed tomographic evaluation is usefull for the follow up studies in postoperative state of congenital biliary atresia.
