Evaluation of C-Scan in Identifying Subjects With Elevated Risk of Polyps in the Colon

The purpose of the first part of the study (subgroup R\&D) is to demonstrate the safety and performance of the C-Scan system and to collect data in order to improve the analysis process. The purpose of the second part of the study (subgroup pre-pivotal) is to determine the ability of the C-Scan System to identify elevated risk subjects