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It is used to treat pain when cancer has spread to the bone. [1] [2] It is injected into a vein and distributed throughout the body, where it is preferentially absorbed in areas where cancer has invaded the bone. The radioisotope 153 Sm, with a half-life of 46.3 hours, decays by emitting beta particles , which kill the nearby cells. Pain begins ...
Cobalt therapy is the medical use of gamma rays from the radioisotope cobalt-60 to treat conditions such as cancer.Beginning in the 1950s, cobalt-60 was widely used in external beam radiotherapy (teletherapy) machines, which produced a beam of gamma rays which was directed into the patient's body to kill tumor tissue.
Side effects are dose-dependent; for example, higher doses of head and neck radiation can be associated with cardiovascular complications, thyroid dysfunction, and pituitary axis dysfunction. [15] Modern radiation therapy aims to reduce side effects to a minimum and to help the patient understand and deal with side effects that are unavoidable.
A radioisotope produced by the MU Research Reactor for a drug manufacturer now is being injected into prostate cancer patients at MU Health Care.
The most common side effects reported during clinical trials in men receiving 223 Ra were nausea, diarrhea, vomiting and swelling of the leg, ankle or foot. The most common abnormalities detected during blood testing were anemia , lymphocytopenia , leukopenia , thrombocytopenia and neutropenia .
The beta radiation released damages both normal thyroid tissue and any thyroid cancer that behaves like normal thyroid in taking up iodine, so providing the therapeutic effect, whilst most of the gamma radiation escapes the patient's body. [7] Most of the iodine not taken up by thyroid tissue is excreted through the kidneys into the urine.
Carolyn Anderson and Heather Hennkens are leading the research project into how terbium-161 can one day treat cancer patients. The research is funded by a $450,000 grant from the U.S. Department ...
Radiation therapy is used to kill cancer cells; however, normal cells are also damaged in the process. Currently, therapeutic doses of radiation can be targeted to tumors with great accuracy using linear accelerators in radiation oncology; however, when irradiating using external beam radiotherapy, the beam will always need to travel through healthy tissue, and the normal liver tissue is very ...