Kansas City, Missouri 64128

  • Neoplastic


The investigators hypothesize that NBI will have a high accuracy in predicting polyp histology real time during a colonoscopy by visualization of the surface mucosal and vascular patterns. Aim#1: To determine the sensitivity, specificity and accuracy of NBI and standard white light colonoscopy for predicting polyp histology by evaluating the surface mucosal and vascular patterns during colonoscopy. Aim#2: To determine the inter-observer agreement between investigators for the recognition of various polyp patterns.


Inclusion Criteria: - referral for screening or surveillance colonoscopy - the ability to provide informed consent Exclusion Criteria: - prior surgical resection of any portion of colon - prior history of colon cancer - history of inflammatory bowel disease - use of anti-platelet agents or anticoagulants that precludes removal of polyps during the procedure - poor general condition or any other reason to avoid prolonged procedure time - history of polyposis syndrome or Hereditary Non-polyposis colon cancer - inability to give informed consent



Primary Contact:

Principal Investigator
Amit Rastogi, MD
Kansas City VA Medical Center

Vikas Singh, MD, MHSA
Phone: 816 861 4700 ext. 56428
Email: vikas.singh@va.gov

Backup Contact:


Location Contact:

Kansas City, Missouri 64128
United States

Amit Rastogi, MD
Phone: 816-861-4700
Email: amit.rastogi@va.gov

Site Status: Recruiting

Data Source: ClinicalTrials.gov

Date Processed: July 27, 2021

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