The improved visibility made possible by NBI may prove to be as good as chromoendoscopy but so much easier to handle. You can switch between regular and NBI images at the touch of a button and as often as necessary. In the upper gastrointestinal tract, NBI helps identify areas of intestinal metaplasia within columnar mucosa in the distal oesophagus. It can also identify specific patterns associated with Barrett’s oesophagus, which may represent lesions of high-grade dysplasia. NBI may also make it possible to more accurately target biopsies in patients with Barrett’s oesophagus. In the lower gastrointestinal tract, NBI emphasises pit patterns and shows the potential to replace chromoendoscopy. In addition to helping improve detection of lesions in the colon, NBI helps identify suspicious areas for target biopsies in patients with ulcerative colitis