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Adenoma Detection Rate in Water and Air Colonoscopy Using Computer-aided System

Colonoscopy Clinical Trial

Official title:
Adenoma Detection Using Real-Time Computer-Aided Colon Polyp Detection System to Compare Water Exchange and Air Insufflation - A Randomized Controlled Trial

Clinical Trial Summary

Water exchange (WE) is an effective insertion method to minimize insertion discomfort and maximize ADR. It is characterized by infusing water to guide insertion in an airless lumen with suctioning of infused water during insertion and almost complete removal of the infused water when cecal intubation is achieved. A modified Delphi review reported water exchange showed the highest overall ADR, ADR in screening cases, and in the right side of the colon compared with water immersion and air (or CO2) insufflation. One of the plausible mechanisms of improving ADR by water exchange is salvage cleaning during insertion, which might help artificial intelligence by removing the interference of fecal debris and bubbles. However, no RCT has been performed to evaluate the effect of CADe on WE colonoscopy. Therefore, investigators will conduct a RCT comparing the ADR of CADe assisted colonoscopy inserted with either WE or insufflation. Our hypothesis will be that CADe assisted WE colonoscopy achieves higher ADR than CADe assisted air insufflation colonoscopy.

Clinical Trial Description

The primary end point will be ADR, defined as the proportion of patients with at least one adenoma. Serrated lesions will not be counted as part of ADR. Secondary outcomes were FP rate, adenomas per colonoscopy (APC), polyp detection rate, polyps per colonoscopy, SL detection rate, cecal intubation rate, withdrawal time. Missed polyp will be defined as a polyp recognized by endoscopist, but is not detected by CADe system at an interval of 2 seconds. The detected polyps will be classified in sizes, morphology (polypoid or nonpolypoid). Investigators also record the detection of every polyp by the endoscopist or the CADe system in time priority. If a polyp is detected by performing endoscopist at the same time as the CADe system, the credit will go to the endoscopist. The colonoscopy procedure will be recorded as CADe over-laid videos and be reviewed for FP characteristics, numbers and appearance time afterward. The withdrawal time will be divided into inspection time, cleaning time and polypectomy time. Boston Bowel Preparation Scale score and the amount of water infused and aspirated will also be recorded. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05448300
Study type Interventional
Source Dalin Tzu Chi General Hospital
Contact Chia Pei Tang, MD
Phone 0921128335
Email franktg@hotmail.com
Status Recruiting
Phase N/A
Start date May 16, 2022
Completion date May 15, 2023
View Details
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