Radioactive medicines used as a diagnostic or therapeutic agent to diagnose and/or cure disease are termed Nuclear medicine
Radiation therapy (also known as radiotherapy) is a type of cancer treatment in which strong doses of radiation are used to destroy cancer cells and reduce tumours. Radiation is used in low levels in x-rays to look inside your body, like in x-rays of your teeth or shattered bones.
Scintigraphy is a technique that uses radiopharmaceuticals to create pictures of organs or tissues of interest. A gamma camera is a sort of medical instrument that can detect the gamma rays released by the radioisotope.
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