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PET scanner

PET scanner

M410/0032

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Credit

ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY. ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY.

Caption

Dr. Henry Wagner, director of nuclear medicine at John Hopkins Hospital, Baltimore, demonstrates Positron Emission Tomography (PET), to produce an axial image of his brain. A high-cost technique, PET scanning involves injecting a positron- emitting radioisotope (produced in a cyclotron) into the body: the detector is sensitive to photons produced when positrons emitted collide with electrons from the molecules in the brain to which the radioisotope has been dedicated.One example is glucose, where PET scans may detect schizophrenia & Alzheimer's disease, or Parkinsonism by mapping dopamine receptor sites.

Release details

Model release not required. Property release not required.

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