Fig. 1From: Clinical value of DPOC for detecting and removing residual common bile duct stones (video)Guide wire guide method. a ultraslim endoscope through the opening of the duodenal papilla to the distal end of the bile duct; b insertion guide wire through the endoscopic working channel; c fluoroscopy confirmed that the guide wire reached the intrahepatic bile duct; d ultraslim endoscope insertion to the common hepatic duct along the guide wire, arrow pointed to the opening of the cystic ductBack to article page