<prompt> True about viual colonscopy VCHave better image than convential colonoscopyVC is performed by CT MRITake over time than conventional colonoscopyeasy to take tissue sample  <response>: .Viual colonoscopy CT colonography is also useful to visualize entire colon.provides bette visualization than conventional colonoscopy. ref:SRB;s manual of surgery,ed 3,pg no 839 