FDG-PET
Pronunciation: eff-dee-gee pet
Also written as: FDG-PET — fluorodeoxyglucose positron emission tomography
Fluorodeoxyglucose positron emission tomography imaging that measures brain glucose metabolism.
Full Definition
Fluorodeoxyglucose positron emission tomography (FDG-PET) is a nuclear imaging technique that measures regional brain glucose metabolism as a marker of neural activity. FDG, a glucose analog labeled with fluorine-18, accumulates in metabolically active brain regions, providing complementary information to structural and functional MRI. This technique is particularly valuable for diagnosing neurodegenerative diseases, evaluating epileptic foci, and assessing brain tumors, with characteristic metabolic patterns serving as diagnostic biomarkers.
Usage
Usage note: Hyphenate FDG-PET; spell out fluorodeoxyglucose on first use.
In Context
- "FDG-PET revealed bilateral temporoparietal hypometabolism consistent with Alzheimer's disease." — Nuclear medicine report
- "The epilepsy protocol combined FDG-PET with ictal SPECT for comprehensive seizure localization." — Clinical imaging protocol