CT (Computed Tomography), also known as a CAT (Computerized Axial Tomography) scan, is a type of medical imaging procedure that uses X-rays and computer technology to create detailed images of the body's internal structures.

During the procedure, the patient lies on a table that moves slowly through a ring-shaped machine that houses an X-ray tube and a detector. The X-ray tube rotates around the body and sends X-ray beams through the body at different angles. The detector measures the amount of radiation that passes through the body and creates multiple images of thin slices of the body's internal structures, such as the brain, lungs, liver, and bones.

The computer then combines the individual images to create a detailed, cross-sectional view of the body's internal structures. CT scans can reveal more detailed information about the body's internal structures than traditional X-rays, making them a valuable diagnostic tool for a wide range of medical conditions.

CT scan

CT scans can be performed with or without contrast dye, which helps to highlight certain structures or abnormalities in the body. The procedure is generally painless and non-invasive, although some patients may experience discomfort from lying still on the table or from receiving the contrast dye. CT scans are commonly used to diagnose conditions such as cancer, infections, bone fractures, and internal injuries, among others.