1. Novel Endoscopic Approaches in Detecting Colorectal Neoplasia: Macroscopes, Microscopes, and Metal Detectors 
Anna M. Buchner, Michael B. Wallace 
Gastroenterology 
Volume 135, Issue 4, Pages (October 2008)
DOI: /j.gastro
Copyright © 2008 AGA Institute Terms and Conditions

2. Figure
The absorption spectrum of white light form a patients without and adenomatous polyps (red) and a different patients within 30 cm (but not on top of) an adenomatous polyp. This demonstrates significantly more absorption (lower signal intensity) of light, primarly by hemoglobin, in the region of a polyp suggesting a “field” effect of increased vascularity.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2008 AGA Institute Terms and Conditions