What is SRS?
Stereotactic radiosurgery (SRS), also called stereotactic radiation therapy (SRT), delivers high doses of radiation to tumors with great precision.
Using imaging technology, our radiation oncologists first map the location of the tumor. Then, using highly sophisticated computer equipment, SRS shapes multiple radiation beams tightly around the tumor to destroy cancerous cells.
We often perform SRS with Varian’s Trilogy™ or with the CyberKnife® VSI™ Robotic Radiosurgery System. Our doctors also deliver fractionated stereotactic radiosurgery. In this treatment, the total dose of radiation is divided into several smaller doses of radiation, delivered over several days.
SRS for brain cancer
SRS is generally used to treat small tumors contained in localized areas of the brain or spinal cord, as well as blood vessel abnormalities in the brain. There are some circumstances where we may use SRS to treat metastatic brain tumors (as an alternative to whole-brain radiation or surgical resection), particularly for tumors in more than one location.
With SRS, we can focus radiation to the outline of the tumor and protect nearby healthy tissue, which is especially important for areas in the brain. Some additional potential advantages of SRS for brain cancer include:
- SRS precisely focuses radiation around the brain tumor from different angles, allowing us to deliver a large radiation dose to the tumor with less damage to nearby healthy brain tissue.
- SRS modulates the intensity of the radiation beams, sparing the surrounding brain tissue from significant doses of radiation.
- Using this form of brain cancer radiation therapy, we can reach tumors in the brain without the risks of surgery. There is no incision, minimal discomfort, reduced recovery times, and few of the risks typically associated with surgery, such as infection.
- Because of its precision, SRS may be an option for individuals who have received previous radiation, as SRS can avoid previously treated areas.
Helping you maintain your quality of life
Your care team anticipates and proactively manages the side effects of brain cancer radiation therapy. Before, during and after your SRS treatment, you’ll receive integrative oncology services designed to keep you strong, reduce the side effects of radiation, and promote your overall well-being.