• Epilepsia · Jan 2004

    Review

    Magnetoencephalography in epilepsy.

    • Robert C Knowlton and Jerry Shih.
    • University of Alabama at Birmingham School of Medicine, UAB Epilepsy Center, Birmingham, Alabama 35294, USA. Knowlton@uab.edu
    • Epilepsia. 2004 Jan 1;45 Suppl 4:61-71.

    AbstractMagnetoencephalography (MEG)-also known as magnetic source imaging when combined with magnetic resonance imaging-has developed to the point that it has now entered routine clinical application. Epilepsy MEG studies show that it can accurately localize spike sources--both ictal and interictal--as compared to both direct (intracranial EEG) and indirect (imaging abnormalities) measures. Challenges remain with difficulties in detecting complex or deep sources when recording spontaneous cerebral activity. Magnetoencephalography not only provides a novel tool to localize and characterize epileptiform disturbances, it also has an important role in determining the significance of abnormalities seen on both structural and functional imaging. Combined with mapping of normal or eloquent brain function, MEG should ultimately play a major role in the totally noninvasive epilepsy surgery evaluation.

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