Intracranial EEG Substrates of Scalp EEG Interictal Spikes

Predictability of EEG interictal spikes.

To determine whether EEG spikes are predictable, time series of EEG spike intervals were generated from subdural and depth electrode recordings from four patients. The intervals between EEG spikes were hand edited to ensure high accuracy and eliminate false positive and negative spikes. Spike rates (per minute) were generated from longer time series, but for these data hand editing was usually ...

Source Analysis of Interictal Spikes in EEG and MEG

Simultaneous EEG/MEG and ECoG source characterization of interictal spikes

For some TLE patients that do not respond the pharmacological treatment, epilepsy surgery is an option. In those cases, the determination of the location of the sources and the sequence in which they become active is of prime importance. In this paper, we investigate the interpretability and validity of dipole source localization based on EEG, MEG and simultaneous EEG+MEG for TLE interictal spi...

High-resolution EEG: cortical potential imaging of interictal spikes.

BACKGROUND It is of clinical importance to localize pathologic brain tissue in epilepsy. Noninvasive localization of cortical areas associated with interictal epileptiform spikes may provide important information to facilitate presurgical planning for intractable epilepsy patients. METHODS A cortical potential imaging (CPI) technique was used to deconvolve the smeared scalp potentials into th...

Scalp and Intracranial EEG-fMRI in Epilepsy

Copyright: © 2013 Graan LAV, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abbreviations: AED: Antiepileptic Drugs; BOLD: Blood Oxygen Level Dependent; DMN: Default Mode Network; ECG: Electrocardiogra...