Nuclear medicine is a branch of medicine which involves the application of radioactive elements to treat and diagnose diseases. Nuclear medicine records the radiations which come from the body; the most used imaging modalities used in nuclear medicine are the single photon emission computed tomography and the positron emission tomography.
The tests related to this medicine differ from the imaging which shows the whole physiological system which is being investigated. Indeed, the images of nuclear medicine focus on organ, tissue or disease-specific rather than generic conventional imaging.
Diagnostic tests in nuclear medicine focus on how the body handles substances differently. The substance usually introduced in the body is chemical and can be distributed around the whole body or processed differently.
Nuclear medicine is usually used to treat diseases such as thyroid cancer, blood disorders and hyperthyroidism.
The origins of this subject date back to 1934 when artificial radioactivity was discovered. Over the years, there have been different developments in this area, also to treat heart diseases.
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