SIMON FRASER / MAIN X-RAY, NEWCASTLE GENERAL HOSPITAL / SCIENCE PHOTO LIBRARY SIMON FRASER / MAIN X-RAY, NEWCASTLE GENERAL HOSPITAL / SCIENCE PHOTO LIBRARY
Examining CT scans. Radiographer examines a series of computed tomography (CT) scans on a lightbox, while speaking into a dicta- phone. The scans at lower frame show "slices" through the pelvis of a patient, with bone coloured white. CT images are obtained from a series of X-ray beams passed through the patient. The scanner is known as a tomograph (from a Greek word meaning slice). CT scans display good contrast between soft tissues in the body, differentiating between bone, fat, muscle and other tissues. CT scans are useful in diagnosing diseases.
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