benefits of nuclear medicine:

Many people, specifically those with cancer or those who have diagnosed a disease early enough to take action, are very grateful for nuclear medicine in today's society. Without it, they might be confined to a hospital bed, or they might have passed away from diseases untreatable by traditional medicine. 

 

Radiotherapy, and radiopharmaceuticals, can be used also to ease the pain of cancer, they can help breathing return to normal, and they can help a person regain control of their bladder.

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Advances in nuclear medicine could drastically change the lives of people affected by the illnesses listed below, because although treatment is currently effective using radiation, it can still be improved. If scientists can discover a way to use gamma rays in radiotherapy without damaging the tissue surrounding the cancer cells, radiotherapy would become more effective, because it would be safe to use in larger doses, which could kill cancer completely. Using radioisotopes in PET scans and the like is currently used to diagnose issues in the body, because it is unsafe to be exposed to radiation in large doses. However, if scientists could limit the danger of using them, radioisotopes could be used to further study the inside of the human body without endangering the subject.  This would further the understanding of human biology.

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A list of the uses of radioactivity in nuclear medicine: