Chromoendoscopy in inflammatory bowel disease

Surveillance for colorectal neoplasia associated with inflammatory bowel disease (IBD) traditionally involves the use of white-light colonoscopy (WLE). With the emerging technology, high-definition WLE, the image quality has improved with a higher rate of detection of colorectal neoplasia. In addition, the routine use of image-enhanced endoscopies has gained momentum, including readily available dye-based and virtual (including narrow-band imaging, flexible spectral imaging color enhancement, I-SCAN, and blue-light imaging) chromoendoscopies, and autofluorescence imaging. Among them, dye-based chromoendoscopy with targeted has been recommended a standard of practice for the surveillance of colitis-associated neoplasia. Furthermore, virtual chromoendoscopy is investigated for its application in the measurement of disease activity, disease monitoring, and assessment of treatment response in IBD.