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    Intraoperative radiation therapy (IORT)


    Definition of intraoperative radiation therapy (iort)

    Intraoperative radiation therapy (IORT) is an intensive radiation treatment that’s administered during surgery. IORT is used to treat cancers that are difficult to remove during surgery and there is a concern that microscopic amounts of cancer may remain. IORT allows direct radiation to the target area while sparing normal surrounding tissue.

    IORT allows higher effective doses of radiation to be used compared to conventional radiation therapy. It’s not always possible to use very high doses during conventional radiation therapy, since sensitive organs could be nearby. IORT also allows doctors to temporarily move nearby organs or shield them from radiation exposure.