Noun
radiotracer (plural radiotracers)
(sciences) A radioactive tracer; a radiolabel
At present, however, by far the most commonly used radiotracer in clinical PET scanning is fluorodeoxyglucose (also called FDG or fludeoxyglucose), an analogue of glucose that is labeled with fluorine-18. Source: Internet
This radiotracer is used in essentially all scans for oncology and most scans in neurology, and thus makes up the large majority of all of the radiotracer (> 95%) used in PET and PET-CT scanning. Source: Internet
Instead, the isotope must be prepared first, then afterward, the chemistry to prepare any organic radiotracer (such as FDG ) accomplished very quickly, in the short time before the isotope decays. Source: Internet