Computed tomography, also referred to as a CAT scan, obtains multiple radiologic images from different angles around the body which are then analyzed by a computer. The results are detailed, cross-sectional views of the body’s organs and tissues. CT scans are particularly useful for evaluating tissues within the cranium as well as the thoracic and abdominal cavities. Pathologic conditions, including cancers, may be diagnosed in the brain, lung, liver, and pancreas.