A compound introduced into the body, the progress of which can subsequently be followed and information obtained about the body’s metabolic activities. Radioactive tracers are compounds labelled with RADIONUCLIDE which give oﬀ radiation. This can be measured with a gamma camera or a scintigram. The information is used in the investigation of suspected tumours in the BRAIN or malfunctioning of the THYROID GLAND.
Article Categories:Medical Dictionary