Network Perspectives on Epilepsy Using EEG/MEG Source Connectivity

Frontiers in Neurology
Pieter van MierloSerge Vulliemoz

Abstract

The evolution of EEG/MEG source connectivity is both, a promising, and controversial advance in the characterization of epileptic brain activity. In this narrative review we elucidate the potential of this technology to provide an intuitive view of the epileptic network at its origin, the different brain regions involved in the epilepsy, without the limitation of electrodes at the scalp level. Several studies have confirmed the added value of using source connectivity to localize the seizure onset zone and irritative zone or to quantify the propagation of epileptic activity over time. It has been shown in pilot studies that source connectivity has the potential to obtain prognostic correlates, to assist in the diagnosis of the epilepsy type even in the absence of visually noticeable epileptic activity in the EEG/MEG, and to predict treatment outcome. Nevertheless, prospective validation studies in large and heterogeneous patient cohorts are still lacking and are needed to bring these techniques into clinical use. Moreover, the methodological approach is challenging, with several poorly examined parameters that most likely impact the resulting network patterns. These fundamental challenges affect all potential applications of EE...Continue Reading

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Citations

Oct 20, 2020·Frontiers in Neurology·Sriharsha RamarajuPeter N Taylor
Oct 22, 2020·Journal of Neural Engineering·Matteo DemuruStiliyan Kalitzin
Dec 29, 2020·Frontiers in Neurology·Gaëtan FrusqueJulien Jung
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Software Mentioned

Fieldtrip
Brainstorm
LORETA
EEGLAB
ESI
CARTOOL
eConnectome
MNE
Epilog

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