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Radiation Oncology

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Intensity-Modulated Radiation Therapy (IMRT)

Similar to three-dimensional conformal radiation therapy (3D-CRT), intensity-modulated radiation therapy (IMRT) is also a type of external beam radiation therapy that delivers beams of radiation customized to the shape and size of the tumor. Unlike 3D-CRT, which delivers the same amount of radiation to both the tumor and the surrounding tissue, the intensity of the beams can be adjusted (modulated) for IMRT, enabling the radiation oncologist to deliver different amounts of radiation to different areas of the tumor and the surrounding tissue. This allows the radiation oncologist to deliver the maximum amount of radiation to the tumor while sparing the surrounding healthy tissue.

IMRT is most often used to treat brain, head and neck, and gastrointestinal tumors and prostate cancer, as it can lower the risk of short-term and long-term damage to the surrounding healthy tissue. BMC has more than a decade of experience using IMRT for head and neck and prostate cancer and has pioneered the use of IMRT in gastrointestinal cancers. 


Call: 617.638.7070
Fax: 617.638.7037

Boston Medical Center
Department of Radiation Oncology
Moakley Building
Lower Level
830 Harrison Avenue
Boston, MA 02118

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Call: 617.638.7070
Fax: 617.638.7037

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