What is Computerized Tomography (CT or CAT scan)?
Computed tomography (CT), sometimes called CAT scan, uses special x-ray equipment to obtain many images from different angles and then joins them together to show a cross-section of body tissues and organs. CT scanning provides more detailed information on head injuries, stroke, brain tumors and other brain diseases than do regular radiographs. It also can show bone, soft tissues and blood vessels in the same images.