Retrospective study, single blind (patient), allowing a posteriori clinical data collection of 90 patients during their passage to the ambulatory endoscopy circuit, to consider 3 groups and thus to deduce a colonic adenoma detection rate for each arm :

• Colonoscopy Only Group
• Artificial intelligence only group (IA GI GENIUS ™ alone)
• Endoscopic Cap and Artificial Intelligence Group (endoscopy cap associated with the GI GENIUS ™ IA System)

Inclusion Criteria :

• 18 years < Patient < 85 years
• Need to perform a primary and / or secondary screening colonoscopy for colorectal cancer
• Patients candidates for outpatient care

Exclusion Criteria :

• History of inflammatory digestive tract disease
• Failed previous colonoscopy
• Known familial polyposis
• Biopsy / polypectomy contraindication (coagulation disorder, treatment with CLOPIDOGREL / Anticoagulant)

patients are recruited during a pre-colonoscopy consultation, carried out by the gastroenterologist in current practice