human
My doctor wants to do a CT scan on my chest. What is a CT scan?
assistant
A CT scan is a type of X-ray that uses computer technology to produce cross-sectional images of the body. It’s often used to look at organs and other internal structures, such as the brain, lungs, and heart. The test involves having a radiologist inject a dye into your bloodstream, which then travels through your body. As the dye passes through various parts of your body, the radiologist can take pictures of those areas using a special camera called a CT scanner.