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Related Experiment Video

Updated: Jun 27, 2026

A New Ex Vivo Model for the Evaluation of Endoscopic Submucosal Injection Material Performance

A New Ex Vivo Model for the Evaluation of Endoscopic Submucosal Injection Material Performance

Published on: October 19, 2018

Comparison of accessory performance using a novel ERCP mechanical simulator.

J W Leung¹, W Lee, R Wilson

¹Section of Gastroenterology, Sacramento Veterans Affairs Medical Center, Veterans Affairs Northern California Healthcare System, Mather, California 95655, USA. jwleung@ucdavis.edu

|December 10, 2008

Summary

A new in vitro study found that stenting systems with intraductal release (IDR) of the guide wire significantly reduced procedure time for multiple stent placements in ERCP. This offers an objective method for evaluating ERCP accessories.

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Area of Science:

Gastroenterology
Medical Devices
Endoscopic Retrograde Cholangiopancreatography (ERCP)

Background:

Limited in vitro methods exist for evaluating Endoscopic Retrograde Cholangiopancreatography (ERCP) accessories.
Evaluating the efficiency of ERCP stenting systems is crucial for improving procedural outcomes.

Purpose of the Study:

To compare the time efficiency of ERCP stenting systems with and without intraductal release (IDR) of the guide wire in simulated procedures.
To assess the utility of a mechanical simulator for objective evaluation of ERCP accessories.

Main Methods:

An in vitro comparison of ERCP accessories was conducted using a mechanical simulator during hands-on workshops.
Participants (21 U.S., 20 Chinese) with varying ERCP experience performed simulated single and multiple stent placements.
Procedure time and simulated fluoroscopy time were recorded for stenting systems with and without IDR capability.

Main Results:

No significant difference in time was observed for single stent placement between the two types of stenting systems.
Stenting systems featuring intraductal release (IDR) of the guide wire demonstrated significantly shorter procedure times for placing three stents.

Conclusions:

A mechanical simulator allows for objective in vitro evaluation of ERCP accessories.
Stenting systems with IDR capability offer a time-efficient advantage for complex biliary stenting procedures.