CT or CAT Scans
A computed tomography (CT) scan uses X-rays to produce detailed images
of structures inside the body. A CT scan is also called a computerized
axial tomography (CAT) scan. CT scanning can be used to obtain information
about almost any body organ—such as the liver, pancreas, intestines,
kidneys, adrenal glands, lungs, and heart—as well as blood vessels,
the abdominal cavity, bones, and the spinal cord.
A contrast agent that contains iodine is often injected into the blood
intravenously during a CT scan. Contrast allows blood vessels and other
structures and organs to become more visible. Contrast may also be used
to evaluate blood flows, detect tumors, and locate areas of inflammation.