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A Method to Separate Contributions of Different Foci in Interictal Epileptic Activity

  • R. Stehr
  • Ch. Lefèbre
  • D. Janz
  • W. Scheuler
  • S. N. Erné
  • L. Trahms
  • J. Wedemeyer

Abstract

So far in MEG studies of epilepsy the main attention has been devoted to patients, showing only a single focus. However, in many patients with pharmacoresistent epilepsy, who are candidates for neurosurgical therapy, a clear unifocal picture of the interictal activity is not found. More probably, the interictal electric and magnetic activity can be referred to a number of separated generators. In order to localize these foci by MEG, it is necessary to extract their contribution out of the measured magnetic activity.

Keywords

Rhythmic Activity Epileptic Patient Dipolar Source Single Focus Pharmacoresistent Epilepsy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. (1).
    Sato, S., Douglas, R., Roger, P.: In: Weinberg, H., Stroink, G., Katila, T. (eds.): Biomagnetism: Applications and Theory. London: Pergamon Press, 261–263, 1982Google Scholar
  2. (2).
    Chapman, R.M., Romani, G.L., Barbarena, S., Leoni, R., Modena, I., Kaufman, L. and Campitelli, F.: Lett. Nuovo Cimento, 38, 549–554, 1983CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • R. Stehr
    • 1
  • Ch. Lefèbre
    • 1
  • D. Janz
    • 1
  • W. Scheuler
    • 1
  • S. N. Erné
    • 2
  • L. Trahms
    • 2
  • J. Wedemeyer
    • 2
  1. 1.Universitätsklinikum Rudolf VirchowBerlinW.-Germany
  2. 2.Physikalisch- Technische Bundesanstalt, Institut BerlinBerlinW.-Germany

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