[Intraoperative ultrasonic diagnosis of choledocholithiasis].

A method of intraductal detection of calculi with the help of ultrasound was used. Ultrasonic probes were employed for the introduction into bile ducts and their sonification from the inside. A comparative analysis of intraoperative methods of detecting biliary calculi was made: the intraoperative cholangiography could reveal the calculi in 86,8% of the observations, the intraductal echolocation--in 94,7% of the observations.