Patients, endoscopists, and setting
polyposis
LYNCH SYNDROME, SYNDROMES, POLYPOSIS, INFLAMMATORY BOWEL DISEASE
Consecutive individuals undergoing screening colonoscopy following a positive fecal immunochemical test (FIT) and who provided informed consent were eligible to participate in the clinical validation of the POLAR system. Exclusion criteria included inflammatory bowel disease, Lynch syndrome, and polyposis syndromes. Endoscopists were required to be accredited for performing colonoscopies within the BCSP. (During the accreditation process, practical skills are evaluated, and knowledge and achievement of evidence-based quality indicators are measured.) At each center, up to three endoscopists were invited to participate in the clinical validation phase; all were required to perform at least 10 study procedures. All procedures had to be performed with EVIS EXERA II or III video processors with 190-series Olympus colonoscopes containing NBI (Olympus, Tokyo, Japan).