Methods: Various electronic databases were searched for articles reporting on high
definition colonoscopy. The pooled incremental yield and pooled weighted mean difference …

Early detection and removal of adenomatous polyps reduces colorectal cancer death.
However, many studies have reported that up to 20% of adenomas can be missed during …

Background and study aims: The resolution of endoscopes has increased in recent years.
Modern Fujinon colonoscopes have a charge-coupled device (CCD) pixel density of 650000 …

Methods: We retrospectively analyzed the records of 501 patients who had undergone
screening colonoscopy performed by three endoscopists with either HD i-SCAN (n= 149) or …

Background and Aims Devices used to improve polyp detection during colonoscopy have
seldom been compared with each other. Methods We performed a 3-center prospective …

Background and study aims: Colonoscopy is widely used to detect and remove
precancerous polyps, but fails to detect some polyps. Recent studies evaluating different …

Background Discriminating neoplastic from non-neoplastic polyps can significantly reduce
the cost of colonoscopy. The American Society for Gastrointestinal Endoscopy (ASGE) …

BACKGROUND: A major factor that may contribute to a higher adenoma miss rate during
colonoscopy is undetected lesions located behind haustral folds, flexures, or rectal valves …

Background Traditional white-light endoscopy cannot reliably distinguish between small (<
10 mm) adenomatous and hyperplastic colon polyps. High-definition white-light (HDWL) …

Background Increasing attention is focused on polyp-related features that may contribute to
the operator-dependent nature of colonoscopy. Few data on polyps are available from high …