Also known as a “CAT scan,” CT combines multiple x-ray images to produce a two-dimensional cross-section view with as much as 100 times more clarity than conventional x-ray.
CT imaging is used to clearly show soft tissue, like the brain, as well as dense tissue, like bone. The information gathered during a CT scan is processed by a computer and interpreted by a radiologist to diagnose, or rule out, disease.
Some CT scans require the use of a contrast medium. Given intravenously, the contrast agent highlights certain body parts to enable the radiologist to better see any abnormalities.