Abstract
Between 1972 and 1979, 2, 076 ERCP examinations have been performed using conven-tional fiberduodenoscope with visual angle of 64°. Cannulation into the orifice of the papilla of Vater was successful in 1, 990 (95%). A success rate for cannulation of the pancreatic duct was 92% and successful cannulation of the common bile duct was achieved in 81%. A new wide-viewing fiberduodenoscope was recently developed. The Fujinon FD-QB has a visual angle of 105°, working length of 1, 340 mm, the tip deflection of 120° and focal depth of 2-80 mm. Advantages of using this scope for ERCP are as follows: (1) the papilla of Vater is easily searched due to the wide viewing angle; (2) ideal position for the cannu-lation into the common bile duct is obtained due to the wide viewing angle and soft deflec-table section; (3) examination time can be mitigated. Using this scope 374 ERCP examina-tions have been performed. An overall success rate for cannulation was 98%. Selection of the desired duct was significantly improved. A success rate for cannulation of the pan-creatic duct, bile duct and both the pancreatic and bile ducts was 96%, 87% and 90% res-pectively.
