[Ultrasound study and computerized tomography in the diagnosis of choledocholithiasis]

A comparative analysis of the results of using the ultrasonic investigation and computed tomography in differential diagnosis of jaundice was made in 205 patients. The reliability of USI in diagnosis of cholelithiasis was 54.3%, and that of standard CT was 55.9%. The authors have developed and used computed tomocholangiography (direct and indirect) in 187 patients with pronounced bilirubinemia. Indirect tomocholangiography was used in patients with bilirubinemia not more than 157 mkm/l. Contrasted main bile ducts were noted in 95% of the patients. When the content of bilirubin in blood plasma was higher than the figures shown, the authors used the direct contrast of the bile ducts in combination with computed tomography. When using more perfect X-ray devices (CT) with the greater resolving power for diagnosis in jaundice patients, it was possible to get the overwhelming information about the state of the bile ducts.