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Types of Peroral Cholangioscopy: How to Choose the Most Suitable Type of Cholangioscopy

  • Yusuke Ishida
  • Takao ItoiEmail author
  • Yoshinobu Okabe
Endoscopy (I Waxman, Section Editor)
Part of the following topical collections:
  1. Topical Collection on Endoscopy

Opinion statement

A number of case studies have described the usefulness of peroral cholangioscopy for diagnosis and therapy, performed by visualizing the inner cavity of the bile duct. Currently available types of peroral cholangioscopy include peroral videocholangioscopy (POCS) using a mother-baby scope system (MBSS), direct peroral videocholangioscopy (D-POCS), and SpyGlass™ Direct Visualization System (SGDVS). POCS started with cholangioscopy using MBSS, requiring two skilled endoscopists using two endoscopic systems. On the other hand, D-POCS and SGDVS were developed as single-operator techniques. In MBSS, the videocholangioscope is inserted into the bile duct through the accessory channel of a conventional therapeutic duodenoscope. MBSS enables comparatively easy scope insertion into the bile duct and stable scope positioning. POCS using MBSS provides excellent images and can be coupled with an image-enhanced function system. However, it has a smaller accessory channel, limiting the devices that can be used. Additionally, scope fragility is serious problem. D-POCS using an ultraslim upper endoscope has been introduced to overcome the drawback of POCS using MBSS. D-POCS has a larger working channel and requires only one endoscopist. D-POCS allows a greater variety of procedures under excellent imaging even with an image-enhanced function system; however, scope insertion is still challenging. SGDVS is designed for single-operator use and is dedicated to procedural purposes. It comprises a reusable optical probe and disposable delivery catheter, which has four-way deflected steering and dedicated irrigation channels. These features lead to good maneuverability, although image quality is poor due to its optical probe system. All systems’ features should be recognized and the appropriate system used depending on the need. Cholangioscopy has shown dramatic progress from diagnosis to therapy with high future growth potential.

Keywords

Peroral cholangioscopy Direct cholangioscopy Single-operator cholangioscopy Mother-baby scope insertion system SpyGlass Direct Visualization System SpyGlass DS 

Notes

Compliance with ethical standards

Conflict of interest

Yusuke Ishida, Takao Itoi, and Yoshinobu Okabe declare that they have no conflicts of interest.

Human and animal rights and informed consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

Supplementary material

ESM 1

SpyGlass DS (MPG 8304 kb)

ESM 2

Videocholangioscopy (MPG 7148 kb)

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Papers of particular interest, published recently, have been highlighted as: • Of importance • Of major importance

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Copyright information

© Springer Science+Business Media, LLC 2016

Authors and Affiliations

  1. 1.Division of Gastroenterology, Department of MedicineKurume University School of MedicineKurumeJapan
  2. 2.Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan

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