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Patient preparing for an EBT scan

Patient preparing for an EBT scan

M410/0277

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Credit

JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY

Caption

Electron beam tomography (EBT). Patient being prepared for an EBT scan by a radiographer. EBT provides clearer and more detailed information about body tissues than CT (computed tomography) scans and reduces the time patients are exposed to dangerous radiation. EBT involves firing an electron beam against tungsten targets arranged in a 210 degree arc below the patient. These produce X-rays which pass through the patient before being detected. A computer is able to produce cross- sectional (slice) images of the body tissues, and 3-D images of organs can be built up by combining many slices. Photographed at the European Scanning Clinic, London, England in March 2002.

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