The effect of high resolution endoscopy in the in vivo diagnosis of colonic polyps

Abstract

Introduction In recent years the resolution of endoscopes has been increasing. Modern Fujinon colonoscopes have a CCD pixel density of 850 000 pixels compared to a standard definition 410 000 pixel CCD. However, acquiring high definition (HD) scopes represents a significant capital investment and their clinical value remains uncertain. This study aims to investigate the impact of high resolution endoscopy on the in-vivo histology prediction of colonic polyps Methods Procedures were performed using Fujinon colonoscopes and EPX 4400 processor. Fujinon standard definition (SD) EC 530 and high resolution (HD) EC530 and EC 590 colonoscopes were used. Polyps Results 232 polyps Conclusion In-vivo diagnosis of small polyps is very important for the correct management of patients. W can conclude from our work that: 1)In-vivo prediction of polyp histology is poor with WLI and this does not improve with HD scopes. 2)In-vivo prediction of polyp histology is good with FICE and improves significantly with HD scopes. 3)In-vivo prediction of polyp histology with IC is very good and is unaffected by HD scopes.