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Stereotactic Body Radiation Therapy

Cancer

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Overview

The technology that makes it possible to treat brain tumors with precision dosing using stereotactic radiosurgery (SRS), may also be applied to the treatment of tumors elsewhere in the body. This is called stereotactic body radiation therapy, or SBRT.

With this non-surgical procedure, delivery of radiation is accurate within two millimeters and at a very high dose, sometimes in a single treatment. The accuracy of the procedure enables the high dose because the oncologist is able to target the tumor while minimizing radiation to the surrounding, healthy tissue.

SBRT is an alternative to invasive surgery, especially for patients who are unable to have surgery due to the location of the tumor. The procedure may be used to treat malignant and benign tumors in the lungs, liver, spine, , and abdomen.

While many patients may be good candidates for a single treatment, the physician may recommend multiple treatments for others. This is especially true of larger tumors because healthy tissue must be protected from the dose of radiation needed for successful treatment. Delivering the required radiation during the course of two to five treatments allows for high doses to be delivered to the tumor while minimizing the effects of the radiation on surrounding tissue. 

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