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Radiation Oncology works with staff from the Hospital, the School of Medicine, and the Research Foundation of New York to deliver comprehensive, state-of-the-art cancer care with a focus on delivering highly targeted radiation that limits exposure to normal tissue. The Department's innovative approaches to treatment and its ongoing acquisition of advanced technology have made it a regional resource.

Physicians, physicists, medical dosimetrists, radiation therapists, nurses and nursing assistants, administrators, and clerical staff compose the Department. Members play a key role in Stony Brook's multidisciplinary cancer teams. Nutrition and social work services are also available.

Referring physicians and other oncologists involved in a patient's care are kept fully apprised of those plans and the patient's progress during and after radiation therapy. Patients and their family members actively participate in the collaborative approach to assessing needs and developing treatment plans. 

Stony Brook has invested in state-of-the-art radiation technology, equipment, and systems. The most advanced treatment planning and information management software is used by the team to provide an integrated network for fast, efficient radiation planning and treatment that minimizes waiting times.

The goal of radiation therapy is to deliver a high dose of radiation to kill or sterilize cancer cells while at the same time sparing healthy tissue from damage. Several different radiation therapy techniques have been developed to accomplish this. Depending on the type of cancer to be treated, radiation therapy is administered either externally by clinical linear accelerators, or internally by brachytherapy implants for localized contact with the tumor. Internal radiation therapies include bronchial brachytherapy, MammoSite® brachytherapy, tandem and ovoid brachytherapy, vaginal cylinder brachytherapy, oral and intravenous radionuclide therapy, and radio-immunoglobulin therapy.