(OA16) Repeat Whole Brain Radiation Therapy Using a Pulsed Reduced Dose Rate Technique

Limited salvage options exist for patients with multiple recurrent brain metastases previously treated with whole brain radiation therapy (WBRT). Pulsed reduced dose rate radiation therapy (PRDR) is a biologically-unique irradiation strategy that lowers the effective dose rate, potentially decreasing toxicity to normal tissue by allowing for sublethal damage repair. PRDR has been shown to be safe and effective in patients with gliomas receiving partial brain re-irradiation. To our knowledge, this technique has not been reported before in patients with brain metastases who have received repeat WBRT with PRDR.

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