Radiation Oncology Services
What is Radiation Oncology?
Radiation therapy uses high-energy radiation to shrink or eradicate tumor cells. Radiation therapy kills cancer cells by damaging their DNA, and cancer cells whose DNA is damaged beyond repair stop dividing or die. There are a variety of types of radiation used for cancer treatments. The radiation may come from a machine outside of the body (linear accelerator - LINAC), or it may come from radioactive material placed in the body (brachytherapy).
Patients may receive radiation therapy before, during or after surgery and/or chemotherapy, depending the on the type and site of cancer being treated.
Patients typically receive external-beam radiation therapy in daily treatment sessions over the course of several weeks. The number of treatment sessions depends on many factors, including the total radiation dose that will de delivered. Additional items the physician will consider are type and size of the cancer, location in the body, proximity of the tumor to normal tissues that are sensitive to radiation, patient’s general health and medical history and if the patient will have any other cancer treatment (e.g., Chemotherapy).