Sessile Serrated Adenoma

The goal of this clinical trial is to learn if colonoscopy monitoring program works to adenoma detection rate in endoscopists. It will also learn about the impact on sessile serrated lesion detection rate, adenomas per colonoscopy, sessile serrated lesions per colonoscopy, advanced adenoma detection rate. The main questions it aims to answer are: Does colonoscopy monitoring program effect on adenoma detection rate in endoscopists? Participants will: Receive result of colonoscopy monitoring program or not every 3 months for 1 year

Texture and Color Enhancement Imaging (TXI) is a newly developed image-enhancing endoscopy technology that has show potential in improving detection of colorectal lesions. This multicenter, randomized, tandem trial is aimed at evaluating whether TXI is superior to WLI endoscopy in terms of diagnosis of premalignant lesions.