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Stereotactic radiation therapy is a type of external radiation therapy that uses special equipment to position the patient and precisely deliver radiation to a tumor.The total dose of radiation is divided into several smaller doses given over several days.Stereotactic radiation therapy is used to treat brain tumors and other brain disorders. It is also being studied in the treatment of other types of cancer, such as lung cancer.Also called stereotactic external-beam radiation therapy and stereotaxic radiation therapy.What differentiates Stereotactic from conventional radiotherapy is the precision with which it is delivered.t is also being studied in the treatment of other types of cancer, such as lung cancer. Also called stereotactic external-beam radiation therapy and stereotaxic radiation therapy. What differentiates Stereotactic from conventional radiotherapy is the precision with which it is delivered.
Radiation therapy can be directed at your lung cancer from outside your body (external beam radiation) or it can be put inside needles, seeds or catheters and placed inside your body near the cancer (brachytherapy). Radiation therapy can be used after surgery to kill any cancer cells that may remain. It may also be used as the first treatment for lung cancers that can't be removed during surgery. For people with advanced lung cancer, radiation therapy may be used to relieve pain and other symptoms. For people with lung cancers that are very small, one option may be stereotactic body radiotherapy.