Within 2 weeks after thermal ablation, you will have SSRS. You will lie in the mold and/or mask that was made for you during the simulation. Radiation treatment will last up to 2 hours. Multiple images will be used to make sure you are in the right position before you receive treatment. The procedure itself usually takes less than 30 minutes. After treatment, you will be free to leave the clinic. You will sign a separate consent for this procedure that explains the risks.