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Types of Radiation Therapy

Radiation therapy can be delivered two ways - externally and internally

  • External beam radiation therapy delivers radiation using a linear accelerator
    • Three-dimensional conformal radiation therapy (3D-CRT)
    • Intensity modulated radiation therapy (IMRT)
  • Internal radiation therapy, called brachytherapy or seed implants, involves placing radioactive sources indside the patient

The type of treatment used will depend on the location, size and type of cancer.