radiotracers
Diagnostic imaging agents
Radiotracers are radioactive substances introduced into the body to track biological processes.
The radiation they emit allows imaging equipment to follow blood flow, metabolic activity, or the uptake of specific molecules—making visible what would otherwise be hidden.
PET scans and other nuclear medicine techniques rely on radiotracers: The radiotracer accumulated in areas of high glucose metabolism, revealing the tumor's location.
Metastable medical radioisotope
- carbon-11Radioactive form of element six
- iodine-131Radioactive halogen isotope
- radionuclideDecay-prone atomic nucleus
- isotopeElemental variant by mass
half-life · cyclotron · generator · labeling · chelation · radiopharmaceutical · specific activity · quality control
Nuclear medicine imaging
- SPECTGamma-emitting radiotracer imaging method
- imagingProducing visual representations
- oncologyCancer medicine specialty
- cardiologyStudy of cardiac disorders
neurology · thyroid · tumor detection · lesion · scan · contrast · injection · nuclear medicine
Drug distribution in tissues
- metabolismCellular nutrient conversion
- clearancePermitted passage or approval
- uptakeAbsorption or understanding
- blood-brain barrierProtective cerebral filtration system
elimination · washout · accumulation · retention · excretion · dosimetry
Before human trials
- quantificationExpressing something numerically
- validationConfirming truth or accuracy
- clinical trialsControlled health research experiments
- radiobiologyStudy of radiation's biological effects
proof-of-concept · specificity · sensitivity · reproducibility · translational
Synaptic chemical messenger
- hypoxiaInsufficient tissue oxygenation
- proliferationRapid increase in quantity
- dopamineReward-linked neural messenger
- serotoninMood-regulating brain chemical
technetium-99m
Metastable medical radioisotope
- carbon-11Radioactive form of element six
- iodine-131Radioactive halogen isotope
- radionuclideDecay-prone atomic nucleus
isotope · half-life · cyclotron · generator · labeling · chelation · radiopharmaceutical · specific activity · quality control
PET
Nuclear medicine imaging
- SPECTGamma-emitting radiotracer imaging method
- imagingProducing visual representations
- oncologyCancer medicine specialty
cardiology · neurology · thyroid · tumor detection · lesion · scan · contrast · injection · nuclear medicine · bone scan
biodistribution
Drug distribution in tissues
- metabolismCellular nutrient conversion
- clearancePermitted passage or approval
- uptakeAbsorption or understanding
blood-brain barrier · elimination · washout · accumulation · retention · excretion · dosimetry
preclinical
Before human trials
- quantificationExpressing something numerically
- validationConfirming truth or accuracy
- clinical trialsControlled health research experiments
radiobiology · proof-of-concept · specificity · sensitivity · reproducibility · translational
neurotransmitter
Synaptic chemical messenger
- hypoxiaInsufficient tissue oxygenation
- proliferationRapid increase in quantity
- dopamineReward-linked neural messenger
radio, traced, tracing, radioactive, traceable, radioactivity, tracer, tracers, untraced