Related Experiment Video
Updated: Feb 23, 2026
Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
Published on: July 11, 2025
High-definition i-Scan colonoscopy is superior in the detection of diminutive polyps compared with high-definition
Jing Shan1, Li Liu, Xiaobin Sun
1Department of Gastroenterology, The 3rd People's Hospital of Chengdu, The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chongqing, China.
Introduction:
Recognition of flat and small neoplastic lesions by colonoscopy is still challenging. High-definition (HD) i-Scan colonoscopy is a promising technique to maximize the sensitivity of colonoscopy; however, whether i-Scan can increase the detection rate of polyps is still unclear. The aim of this study was to prospectively compare HD i-Scan colonoscopy with HD colonoscopy for the detection rate of polyps in routine practice.
Materials And Methods:
A total of 449 patients who underwent total colonoscopy for the first time were randomized in a 1 : 1 ratio to undergo HD+i-Scan colonoscopy or HD colonoscopy. Detected colorectal polyps were judged according to type, location, and size. The primary endpoint was the detection rate and the total number of polyps.
Results:
The number of polyps identified in the HD+i-Scan group was significantly higher than that in the HD group (P=0.041), and this difference was more obvious for diminutive polyps (P=0.035). The number of patients with at least one polyp was not significantly different between the two groups irrespective of the size or the location. Overall, 268 polyps were removed, 130 in the HD+i-Scan group and 138 in the HD group. Among these, three high-grade intraepithelial neoplasia were found in diminutive polyps.
Conclusion:
HD+i-Scan colonoscopy is superior to HD colonoscopy in detecting diminutive polyps on the basis of this prospective randomized-controlled trial.
More Related Videos
15:49Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
Published on: October 16, 2013
14:56Application of Indocyanine Green Fluorescence Imaging Technology in Laparoscopic Duodenum-Preserving Pancreatic Head Resection
Published on: November 21, 2025
Related Concept Videos
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
01:25Endoscopic Procedures II: Colonoscopy
01:28Endoscopic Procedures III: Video Capsule Endoscopy