Radiation Therapy for Brain Cancer

Internal Radiation Therapy

Internal radiation therapy, or brachytherapy, works by placing radioactive sources in, or just next to, a tumor.

During brachytherapy, a tube or balloon called a catheter will be inserted into the brain. The radiation will then be carried to the tumor using this catheter.
The radioactive source will then be left in place from several hours to several days to kill the tumor cells.
In some cases, the radiation is permanently placed directly into the tumor or the area where the tumor was before surgery.

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