Setting and study design
BOWEL CANCER, COLORECTAL POLYPS

This prospective, multicenter project was conducted from October 2018 to September 2021 in eight regional Dutch hospitals and one academic Spanish hospital in partnership with ZiuZ Visual Intelligence (Gorredijk, the Netherlands). The project comprised two phases: 1) development, (pre)training, and preclinical validation of the CADx system (POLyp Artificial Recognition [POLAR] system) for endoscopic characterization of diminutive colorectal polyps; 2) clinical validation of the system during live colonoscopies, compared with the performance of endoscopists participating in the Dutch or Barcelona Bowel Cancer Screening program (BCSP)
