unsealed internal radiation therapy
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- (...RAY-dee-AY-shun THAYR-uh-pee) Radiation therapy given by injecting a radioactive substance into the bloodstream or a body cavity, or by swallowing it. This substance is not sealed in a container.
National Cancer Institute - Cite This Source - This Definition - charged-particle radiation therapy, electron beam, external-beam radiation therapy, external radiation therapy, fast-neutron beam radiation, intensity-modulated radiation therapy, intraoperative radiation therapy, ionizing radiation, photon-beam radiation, plaque radiotherapy, proton beam radiation therapy, radiation necrosis, radiation oncologist, radioimmunotherapy, radiosensitization, radiosensitizer, systemic radiation therapy, ultraviolet radiation therapy, x-ray therapy