Olympus developed narrow band imaging™ technology
to enhance observation of mucosal tissue. Now with the EVIS EXERA III system, an improved version gives twice the viewable distance and is significantly brighter.

NBI™ Technology is an optical imaging technology that enhances the visibility of vessels and other tissue on the mucosal surface. NBI™ Technology works by filtering the white light into specific light wavelengths that are absorbed by hemoglobin and penetrate only the surface of human tissue. As a result, with Narrow Band Imaging™ Technology, capillaries on the mucosal surface are displayed in brown and veins in the submucosa are displayed in cyan on the monitor.