John Libbey Eurotext

Epileptic Disorders

The Educational Journal of the

The use of single bipolar scalp derivation for the detection of ictal events during long-term EEG monitoring Volume 19, issue 3, September 2017


  • Figure 1
  • Figure 2


1 Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede
2 University of Twente, MIRA-Institute for Biomedical Technology and Technical Medicine, Enschede
3 Present address: Department of Biomedical Engineering, Maastricht University, Maastricht
4 Academic Neurosurgical Center Amsterdam, Free University Medical Center - VUmc Campus, Amsterdam
5 Present address: Department of Neurology, Clinical Neurophysiology and MEG, VU University Medical Center, Amsterdam, The Netherlands
* Correspondence: Evelien E. Geertsema Stichting Epilepsie Instellingen Nederland (SEIN), Location “Meer & Bosch”, Research Department, P.O. Box 540, 2130 AM Hoofddorp, The Netherlands
  • Key words: single bipolar scalp EEG, lead orientation, long-term EEG monitoring, epilepsy
  • DOI : 10.1684/epd.2017.0926
  • Page(s) : 307-14
  • Published in: 2017


Epilepsy is difficult to diagnose using routine EEG recordings of short duration in patients who have low seizure frequency. Long-term EEG may be useful but is impractical in an out-of-hospital setting. We investigated whether single-channel scalp EEG placed behind the earlobe is suitable for seizure identification during prolonged EEG monitoring.