Whereas traditional colonoscopy involves snaking a camera called a colonoscope through your colon and rectum, the virtual ...

Computed tomographic (CT) virtual colonoscopy generates 2- and 3-dimensional images of the colon. This technique has been proposed as a screening test for colorectal cancer, but questions remain ...

A virtual colonoscopy is doing a colonoscopy with an x-ray machine. Instead of a physician, a gastroenterologist using an instrument to go up into a colon, there's no instrument involved ...

Dear Dr. Roach: I had a Cologuard test and was told that there is blood in my stool. My doctor tried to do a colonoscopy, but told me he was unable to complete it due to my colon being very twisted.