Tomocat® is a concentrated strawberry flavored barium sulfate suspension. Tomocat® can be used as an oral or rectal (colon) contrast medium for computed tomography of the gastrointestinal tract. The quantity and the barium sulfate concentration will depend upon examination, used technique, clinical needs and patient size.

Virtual colonoscopy provides a less invasive option to conventional polyp detection in the large intestine (colon and rectum). A virtual colonoscopy is a synthesis of a computed tomography (CT) scan, digital processing and virtual reality computer software.
A virtual colonoscopy is less invasive and more comfortable for patients than either conventional colonoscopy or a barium enema. No sedation is required and the examination takes less than 30 minutes.
A CT colonography offers a new option for a total colon evaluation and cancer detection and has the potential to be used for screening. A problem is the amount of information captured in a CT exam. Reviewing these images can be time-consuming and challenging.

See also Computed Tomography Enterography.