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Utility of narrow band imaging for identification of the orifice of the bile duct during ERCP
Author(s) -
Anjiki Hajime,
Kamisawa Terumi,
Egawa Naoto
Publication year - 2010
Publication title -
journal of hepato‐biliary‐pancreatic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.63
H-Index - 60
eISSN - 1868-6982
pISSN - 1868-6974
DOI - 10.1007/s00534-010-0272-6
Subject(s) - major duodenal papilla , endoscopic retrograde cholangiopancreatography , body orifice , bile duct , narrow band imaging , medicine , biliary tract , radiology , common bile duct , gastroenterology , endoscopy , anatomy , pancreatitis
Exact identification of the orifice of the bile duct in the major duodenal papilla is required for selective cannulation during endoscopic retrograde cholangiopancreatography (ERCP). However, there are some cases in which the orifice is unclear. The narrow band imaging (NBI) system is an endoscopic imaging technique based on modification of spectral features that enhances visualization of the vascular network. On NBI, bile appears as a bright red fluid, and it is enhanced in the digestive tract. We report two cases in which the NBI was useful for identification of the orifice of the bile duct during ERCP. We recommend the NBI technique before cannulation in cases where the orifice is unclear on the standard image.