Intraductal biliopancreatic imaging: European Society of Gastrointestinal Endoscopy (ESGE) technology review

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Synopsis

This technology review expresses the current view of the European Society of Gastrointestinal Endoscopy (ESGE) on the available techniques for intraductal biliopancreatic imaging. The three cholangioscopy techniques are described: the “dual-operator” and “ single-operator” mother-baby approaches using dedicated instruments, and the “direct” technique using currently available ultrathin gastroscopes. The mother-baby method is standardized and reproducible, while direct cholangioscopy is technically demanding and its safety requires further evaluation. As well as direct visualization of the bile ducts, cholangioscopy has the further advantage of allowing targeted biopsy. Image quality is still suboptimal for single-operator cholangioscopy, while the other techniques have achieved adequately detailed imaging. The costs of mother-baby cholangioscopy are high and its application in clinical practice should be restricted to selected cases (i.e. indeterminate biliary strictures/intraluminal lesions, difficult biliary stones) and to the setting of tertiary care centers. Peroral pancreatoscopy may find an indication in situations where other imaging modalities (mainly EUS) are inconclusive (i.e. delineation of main duct intraductal papillary mucinous neoplasia extension, sampling of indeterminate main pancreatic duct strictures) Intraductal ultrasonography (IDUS) has a poorer performance than EUS in the staging of pancreatic malignancies and can increase the risk of pancreatitis. A promising indication for IDUS could be the evaluation of indeterminate biliary strictures and ampullary tumors. Probe-based confocal laser endomicroscopy (pCLE) of the bile ducts is a difficult and expensive technique. Appropriate training needs to be established, since interpretation of images is challenging. pCLE can be an important diagnostic tool in the setting of indeterminate biliary strictures.

Keywords: bile duct stones; confocal laser endomicroscopy; papillary mucinous neoplasm; indeterminate biliary lesions; direct peroral cholangioscopy; direct transnasal cholangioscopy; single operator cholangioscopy; carbon-dioxide insufflation; argon plasma coagulation; cerebral air embolism

Available Languages

English

Source File

Scientific area:

Endoscopy, Hepatobiliary, Pancreas
 


This item can be cited as: Endoscopy 2015; 47(08): 739-753, PMID 26147492

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Categorisation:

  • Format
    • Standards and Guidelines
  • Language
    • English
  • UEG Member Society
    • European Society of Gastrointestinal Endoscopy (ESGE)
  • UEG Week Pathway
    • Endoscopy
    • Hepatobiliary
    • Pancreas
  • Year
    • 2015