Magnetoencephalography in epilepsy

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

View graph of relations Save citation

Authors

Research units

Abstract

Magnetoencephalographic (MEG) signals, like electroencephalographic (EEG) measures, are the direct extracranial manifestations of neuronal activation. The two techniques can detect time-varying changes in electromagnetic activity with a sub-millisecond time resolution. Extra-cranial electromagnetic measures are the cornerstone of the non-invasive diagnostic armamentarium in patients with epilepsy. Their extremely high temporal resolution – comparable to intracranial recordings – is the basis for a precise definition of onset and propagation of ictal and interictal abnormalities. Given the cost of the infrastructure and equipment, MEG has yet to develop into a routinely applicable diagnostic tool in clinical settings. However, in recent years, an increasing number of patients with epilepsy have been investigated – usually in the context of presurgical evaluation of refractory epilepsies – and initial encouraging results have been reported. We will briefly review the principles and the technology behind MEG and its contribution in the diagnostic work-up of patients with epilepsy.

Details

Publication dateApr 2012
Publication titleIntroduction to epilepsy
EditorsGonzalo Alarcón, Antonio Valentín
Place of PublicationCambridge (UK)
PublisherCambridge University Press
Pages273-275
Number of pages3
ISBN (Electronic)978-1-13933468-6, 978-1-13910399-2
ISBN (Print)978-0-521-69158-1
Original languageEnglish

Employable Graduates; Exploitable Research

Copy the text from this field...