112
Participants
Start Date
April 1, 2023
Primary Completion Date
July 20, 2024
Study Completion Date
August 16, 2024
Dual-lumen catheter-guided mini-forceps biopsy is performed first
In ERCP procedures, catheter-guided mini-forceps biopsy is performed before biliary brush cytology.
Biliary brush cytology with vacuum aspiration is performed first
In ERCP procedures, biliary brush cytology with vacuum aspiration is performed before dilation catheter-guided mini-forceps biopsy.
Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai
Xijing Hospital of Digestive Diseases
OTHER
Eastern Hepatobiliary Surgery Hospital
OTHER
Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
OTHER