3. Fujinon Intelligent Color Enhancement (FICE) with super CCD chip (Group D) This technique involves a Fujinon EC 590ZW/M colonoscope that is CE approved and commercially available. The procedure involves a normal white light endoscopy during progression of the scope. Once the caecum is reached the entire procedure will be performed in FICE modus n° 4. This has no influence or side effects for the patients because FICE modus is switched on by pushing a button on the scope.