II. Indications: Tumors near critical structures

  1. Head and neck cancer
  2. Prostate Cancer

III. Mechanism

  1. Radiation beam is divided into separate, multiple beamlets
  2. Tungsten leaves shape each beamlet to protect critical tissues

IV. Protocol

  1. Tumor Localization: MRI or CT directed radiation
  2. Dose: May exceed 30 minutes per application
  3. Schedule: Monday through Friday
  4. Duration: 2-7 weeks

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