Use of simultaneous depth and MEG recording may provide complementary information regarding the epileptogenic region

Yosuke Kakisaka, Yuichi Kubota, Zhong I. Wang, Zhe Piao, John C. Mosher, Jorge Gonzalez-Martinez, Kazutaka Jin, Andreas V. Alexopoulos, Richard C. Burgess

Research output: Contribution to journalReview articlepeer-review

14 Citations (Scopus)

Abstract

Simultaneous SEEG-MEG recording has the potential to define the epileptic spike source accurately. We present a case of a 55-year-old female with intractable left temporal lobe epilepsy in whom we evaluated the relationship between the amplitude recorded from SEEG electrodes, inserted in the lateral temporal region, and their distance from the MEG-modelled spike. We found a quadratic fall-off relationship between the amplitude and distance. This result supports the concept that the MEG dipoles reflect the "centre" of spike locations and may provide comprehensive information for SEEG which records spike activities directly but is inherently limited in spatial sampling.

Original languageEnglish
Pages (from-to)298-303
Number of pages6
JournalEpileptic Disorders
Volume14
Issue number3
DOIs
Publication statusPublished - 2012 Sep

Keywords

  • Magnetoencephalography
  • Quadratic fall-off
  • Simultaneous recording
  • Stereotactic electroencephalography
  • Volume conduction

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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