Dye- spray chromoendoscopy remains the recommended gold standard approach for IBD dysplasia surveillance colonoscopy however recently published European and American guidelines recommend either dye-spray or virtual chromoendoscopy can be used for surveillance. The newer Imaged Enhanced Endoscopy technologies TXI and LCI have not formally been evaluated in IBD surveillance in a randomised controlled trial setting. These modes can easily be applied during colonoscopy and if demonstrated to be effective may save time and eliminate the need for dye-spray chromoendoscopy in the future.

Inclusion Criteria:

• Patients with inflammatory bowel disease aged 18 to 75 years, that meet Australian recommendations to undergo surveillance colonoscopy will be identified and invited participate in the study.

Exclusion Criteria:

• Any active disease
• Inadequate bowel preparation
• Previous surgical resection involving the colon
• History of bowel cancer