also called Computerized Axial Tomography (CAT Scan), is a special type of X-Ray that results in a series of cross-sectional pictures. CT images are able to show more detail than a regular x-ray. They can show bone and soft tissues, like muscles, vessels, and organs. Sometimes a dye (contrast) is used to help certain areas show up better. The dye is given through an IV, swallowed, or given through the rectum.