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Magnetoencephalography
Pronunciation: mag-NEE-toh-en-SEF-ah-LOG-rah-fee
A neuroimaging technique that measures magnetic fields produced by electrical activity in the brain.
Full Definition
Magnetoencephalography (MEG) is a non-invasive neuroimaging technique that detects magnetic fields generated by synchronized neural activity. In pediatric neurology, MEG is particularly valuable for localizing epileptogenic foci and mapping eloquent brain areas before epilepsy surgery. The technique provides excellent temporal resolution and good spatial localization, making it complementary to EEG and structural imaging in presurgical evaluation.
Usage
Usage note: Often abbreviated as MEG in clinical contexts.
In Context
- "Magnetoencephalography revealed spike activity localized to the left temporal region." — Presurgical evaluation report
- "The epilepsy center offers magnetoencephalography as part of their comprehensive evaluation protocol." — Hospital service description
Also known as
MEG
Don't confuse with
electroencephalography
magnetic resonance imaging