CT Services or Computerized Tomography (CT, CT scan, CAT scan) is an X-ray technique that produces more detailed images of your internal organs than do conventional X-ray studies. Using CT, your doctor can distinguish between adjacent tissues of similar composition that are indistinct on conventional X-ray images. CT Virtual Colonoscopy requires a specific 24 hour preparation.
For example, a plain X-ray of your abdomen will show bones and at best subtle outlines of the liver, stomach, intestines, kidney and spleen. But a CT scan reveals with clarity and precision not only these structures but also the pancreas, adrenal glands, ureters and blood vessels
For a more detailed explanation of CT, visit RadiologyInfo.org, the public information Web site developed and funded by the American College of Radiology (ACR) and the Radiological Society of North America (RSNA).