Normalized Distance Along the Colon Centerline: A Method for Correlating Polyp Location on CT Colonography and Optical Colonoscopy

摘要

ObjectiveThe ability to accurately locate a polyp found on CT colonography (CTC) at subsequent optical colonoscopy (OC) is an important part of the successful implementation of CTC for colorectal cancer screening. The purpose of this study was to determine if a polyp's normalized distance along the colon centerline (NDACC) derived from CTC data can accurately predict its location on optical colonoscopy.