SIMON FRASER / DEPARTMENT OF RADIOLOGY, RVI, NEWCASTLE / SCIENCE PHOTO LIBRARY SIMON FRASER / DEPARTMENT OF RADIOLOGY, RVI, NEWCASTLE / SCIENCE PHOTO LIBRARY
Young girl undergoing an abdominal ultrasound examination. Ultrasound scanning uses high frequency sound waves to form an image of internal body structures and is used to search for tumours, abscesses etc.. A small transducer held against the abdomen (right) emits the sound waves in short pulses and acts as a receiver for returning echoes. Echoes are created as each ultrasound pulse meets an interface between two tissues of different densities. The television screen at right displays a plot of echo volume against time to produce an image "slice" through the body. Patient: Lindsey Claire Bailey Radiographer: Elizabeth Hunter Radiologist: Dr Gerard Avery.
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