USEFULNESS OF RED DICHROMATIC IMAGING FOR COLORECTAL ENDOSCOPIC SUBMUCOSAL DISSECTION

Abstract

Red dichromatic imaging (RDI) is a next-generation image-enhancement technique that uses three wavelengths (red, amber, and green). RDI has 3 modes—modes 1 and 2 are used during colorectal endoscopic submucosal dissection (ESD). RDI improves the visibility of blood vessels and tissues, which helps visualize the bleeding point clearly and maintain clear visibility during colorectal ESD with submucosal fatty tissue. The operator should have sufficient understanding of the characteristics of RDI and use it as per the situation.