LARRY MULVEHILL / SCIENCE PHOTO LIBRARY LARRY MULVEHILL / SCIENCE PHOTO LIBRARY
Woman undergoing a brain scan by computed axial tomography (CAT or CT). CT images are constructed from data relating to the attenuation of a series of x-ray beams by body tissues, passed through the subject from numerous angles around the circular x-ray scanner. The scanner is known as a tomograph (from Greek word meaning slice). CT scans are able to provide better contrast for the soft tissues in the body, differentiating between bone, fat and muscle due to the varying x-ray absorption characteristics of these tissues. Typical applications are in the location of tumours and blood clots.
Model release not available. Property release not required.