![]() ![]() The most common radioisotope used in diagnosis is technetium-99 (Tc-99), with some 40 million procedures per year, accounting for about 80% of all nuclear medicine procedures and 85% of diagnostic scans in nuclear medicine worldwide. Over 10,000 hospitals worldwide use radioisotopes in medicine, and about 90% of the procedures are for diagnosis. Five Nobel Laureates have been closely involved with the use of radioactive tracers in medicine. In some cases radiation can be used to treat diseased organs, or tumours. The thyroid, bones, heart, liver, and many other organs can be easily imaged, and disorders in their function revealed. In most cases, the information is used by physicians to make a quick diagnosis of the patient's illness. Nuclear medicine uses radiation to provide information about the functioning of a person's specific organs, or to treat disease. In developed countries (a quarter of the world population) about one person in 50 uses diagnostic nuclear medicine each year, and the frequency of therapy with radioisotopes is about one-tenth of this. There is widespread awareness of the use of radiation and radioisotopes in medicine, particularly for diagnosis (identification) and therapy (treatment) of various medical conditions. The attributes of naturally decaying atoms, known as radioisotopes, give rise to several applications across many aspects of modern day life (see also information paper on The Many Uses of Nuclear Technology). Sterilization of medical equipment is also an important use of radioisotopes.Over 40 million nuclear medicine procedures are performed each year, and demand for radioisotopes is increasing at up to 5% annually.Radiotherapy can be used to treat some medical conditions, especially cancer, using radiation to weaken or destroy particular targeted cells. ![]() Diagnostic procedures using radioisotopes are now routine. Nuclear medicine uses radiation to provide diagnostic information about the functioning of a person's specific organs, or to treat them.
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