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Stereotactic Radiosurgery

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Stereotactic Radiosurgery, Gamma Knife

  • See Also
  1. External Beam Radiation Therapy
  • Indications
  • Intracranial Lesions
  1. Brain metastases
  2. Meningioma
  3. Acoustic Neuroma
  4. Arteriovenous Malformation
  5. Trigeminal Neuralgia
  • Mechanism
  1. Multiple radiation beams directed at target tumor
  2. High-dose radiation to the tumor (sparing surrounding tissue)
  • Protocol
  1. Tumor Localization
    1. MRI used to localize the tumor
    2. Patient's head fixed in a positioning frame to prevent movement
  2. Dose: Single treatment for 45-60 minutes