A computed tomography (or CT) scan is an imaging procedure that uses x-rays and digital computer technology to create detailed 3D images of the body.
A CT (computed tomography) scan is an imaging test used by healthcare providers to diagnose diseases and injuries. It creates detailed images of your bones and soft tissues by taking a series of X-rays and using a computer. A CT scan is painless and non-invasive. You may need to go to a hospital or radiology center for your CT scan. Your provider might use a contrast material to highlight certain areas of your body on the scan. For a CT scan with contrast, your provider will place an IV (intravenous line) and inject a contrast (or dye) into your vein. They may also give you a substance to drink (like a barium swallow) to highlight your intestines. Both improve the visibility of specific tissues, organs or blood vessels and help healthcare providers diagnose several medical conditions. IV contrast agents usually flush from your system (when you pee) within 24 hours.