"Nuclear medicine in vivo is the practice of utilising small amounts of radioactive substances (unsealed radioactive sources) to diagnose, monitor and treat disease. The utilisation of radiopharmaceuticals (radionuclide + pharmaceutical) offers a unique perspective on both disease and cancer treatment. Specifically, only radionuclides that emit γ or β+ radiation find use in nuclear medical imaging. Radionuclides, on the other hand, which are used in therapy emit - as a rule - β- particles."
"Nuclear medicine in vivo is the practice of utilising small amounts of radioactive substances (unsealed radioactive sources) to diagnose, monitor and treat disease. The utilisation of radiopharmaceuticals (radionuclide + pharmaceutical) offers a unique perspective on both disease and cancer treatment. Specifically, only radionuclides that emit γ or β+ radiation find use in nuclear medical imaging. Radionuclides, on the other hand, which are used in therapy emit - as a rule - β- particles."