CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Examining CT scans. Radiologist examines a series of computed tomography (CT) scans on a lightbox. The scans show "slices" through the brain 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 locating tumours, blood clots and diagnosing diseases.
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