Karincaoglu, MYildirim, BSeckin, YKantarceken, BAladag, MHilmioglu, F2024-08-042024-08-0420030942-8925https://doi.org/10.1007/s00261-002-0068-5https://hdl.handle.net/11616/93566Background: One of the most reliable, frequently used imaging techniques in cholestasis is ultrasonography (US) for the diagnosis of common bile duct (CBD) stones. Methods: In this study, changes in diameters of CBD were determined ultrasonographically before and after endoscopic sphincterotomy (ES) in 46 patients with stone-induced dilated CBD. Results: There was a significant decrease in CBD diameter measured 1 week after ES and extraction of stone (p < 0.001). In 87% of cases, the difference was more significantly pronounced during the first 24 h of ES. The mean CBD diameters on US were 13.70 +/- 3.00 mm. (10-21 mm) before and 9.13 +/- 2.90 mm (4.2-18 mm) 24 h after endoscopic treatment (p < 0.001). After ES, six patients (13%) with inadequate decreases in CBD diameters were found to have residual stones. Conclusion: US can show residual stones in the CBD with the same efficacy as endoscopic retrograde cholangiopancreatography.eninfo:eu-repo/semantics/closedAccesscommon bile duct diameterstoneresidual stoneultrasonographyendoscopic sphincterotomyArticle2845315351458009710.1007/s00261-002-0068-52-s2.0-0038681690N/AWOS:000183890000012Q3