Positron Emission Tomography (PET)

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How does a PET scan work?

  • Radioactive isotopes are injected into the body

  • The isotopes settle on areas of high cellular activity

  • The radioactive material decays and gives off gamma rays that can be detected by a scanner

  • The location of the isotope can then be imaged

  • This helps to identify the most active cells/greatest blood supply

<ul><li><p>Radioactive isotopes are injected into the body</p></li><li><p>The isotopes settle on areas of high cellular activity</p></li><li><p>The radioactive material decays and gives off gamma rays that can be detected by a scanner</p></li><li><p>The location of the isotope can then be imaged</p></li><li><p>This helps to identify the most active cells/greatest blood supply</p></li></ul>
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What are the uses of a PET scan?

  • Used in brain imaging studies

  • Used to follow up patients undergoing cancer treatment

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