Radiation in the CT room is not significant; radiation is only present in the CT room during the examination and is only released during the time the patient is exposed to the machine during the examination. The door of the examination room is closed during the patient’s examination. In addition, the examination room is specially treated, and the walls, doors, and glass are all radiation-proof. When radiation is present in the examination room, there is no radiation outside the examination room. In addition, when patients undergo CT examinations, doctors will provide radiation protection for patients. The doctor will cover the area that is not scanned with a lead suit or lead apron or lead bib, so that the patient will receive less radiation.