The Use of Magnetic Endoscopic Imagers During Colonoscopy for Loop Recognition and Resolution

Study Overview
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Brief Summary
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The purpose of this study is threefold. First, the ability of experienced colonoscopists to recognize the type of loop formed will be assessed and whether the use of the MEI improves this accuracy. Second, to determine which maneuvers are used for loop reduction and whether certain loops have set ways to reduce them. The third component will assess whether the colonoscopist thought that the imager helped or not.

Official Title
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The Use of Magnetic Endoscopic Imagers During Colonoscopy for Loop Recognition and Resolution

Conditions
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Colonoscopic Surgical Procedures

Intervention / Treatment
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* Device: Magnetic endoscopic imager.


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: adults (18 years and older) undergoing colonoscopy Exclusion Criteria: age less than 18 years old not willing to participate cardiac pacemaker internal cardiac defibrillator previous colonic surgery

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Staff Gastroenterologists.<br>Staff Gastroenterologists ability to recognize loops will be assessed using an magnetic endoscopic imager. | Device: Magnetic endoscopic imager.<br>* recognizing loop type accuracy of loop type detection methods of loop reduction assessed by type<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accuracy of loop recognition by experienced colonoscopists compared to the magnetic imager. | When an endoscopist encounters looping they will verbalize what type of loop they think they have and this will be recorded by the endoscopy nurse on a pre-printed data collection sheet. The magnetic imager will then be turned on and a photo of the imager loop will be saved. A physician not involved with the colonoscopy will compare the image to the endoscopist's answer to determine whether they were correct or incorrect. | within 3 mths | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Qualitative description of maneuvers used for loop reduction. | When an endoscopist encounters looping they will verbalize what type of loop they think they have and what maneuvers (example, reducing with clockwise torque) they used to reduce the loop. The magnetic imager will be turned on and the endoscopist will comment on whether the imager was helpful in reducing the loop. This information will be collected on a pre-printed data collection sheet. | within 3 mths | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Colonoscopy, Looping, Loop recognition, magnetic endoscopic imager