Computed Tomography (CT)

A CT (Computed Tomography) scan, often called a CAT scan, is a painless examination that gives your physician an unobstructed look at organs and structures that cannot be seen clearly on conventional X-rays.  The scanner obtains image data from different angles around the body, and then uses computer processing of the information to show a cross-section of body tissues and organs. The CT scan combines a sophisticated X-ray system with a high-speed computer.  This combination produces a precise picture of the body, allowing the physician to see Tissue and Bone structure in fine detail.  CT imaging is particularly useful because it can show several types of tissue (bone, blood vessels, lung, soft tissue) with great clarity.  Radiologists can more easily diagnose problems such as cancers, cardiovascular disease, trauma and bone disorders.  CT is one of the best tools for studying the chest and abdomen, and for diagnosing certain cancers including lung, liver and pancreatic.  The image can allow a physician to confirm the presence of a tumor, and to measure its size, precise location and possible involvement with other tissues.
How do I prepare for a CT Scan?		What do CT scans look like?