MEG Node Degree Differences in Patients with Focal Epilepsy vs. Controls-Influence of Experimental Conditions
Vogel S, Kaltenhaeuser M, Kim C, Müller-Voggel N, Roessler K, Dörfler A, Schwab S, Hamer H, Buchfelder M, Rampp S (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 11
Journal Issue: 12
Abstract
Drug-resistant epilepsy can be most limiting for patients, and surgery represents a viable therapy option. With the growing research on the human connectome and the evidence of epilepsy being a network disorder, connectivity analysis may be able to contribute to our understanding of epilepsy and may be potentially developed into clinical applications. In this magnetoencephalographic study, we determined the whole-brain node degree of connectivity levels in patients and controls. Resting-state activity was measured at five frequency bands in 15 healthy controls and 15 patients with focal epilepsy of different etiologies. The whole-brain all-to-all imaginary part of coherence in source space was then calculated. Node degree was determined and parcellated and was used for further statistical evaluation. In comparison to controls, we found a significantly higher overall node degree in patients with lesional and non-lesional epilepsy. Furthermore, we examined the conditions of high/reduced vigilance and open/closed eyes in controls, to analyze whether patient node degree levels can be achieved. We evaluated intraclass-correlation statistics (ICC) to evaluate the reproducibility. Connectivity and specifically node degree analysis could present new tools for one of the most common neurological diseases, with potential applications in epilepsy diagnostics.
Authors with CRIS profile
Stephan Vogel
Department of Neurosurgery
Cora Kim
Lehrstuhl für Neurochirurgie
Nadia Müller-Voggel
Department of Neurosurgery
Arnd Dörfler
Department of Neuroradiology
Stefan Schwab
Lehrstuhl für Neurologie
Hajo Hamer
Professur für Epileptologie
Michael Buchfelder
Lehrstuhl für Neurochirurgie
Stefan Rampp
Department of Neurosurgery
Involved external institutions
Austria (AT)How to cite
APA:
Vogel, S., Kaltenhaeuser, M., Kim, C., Müller-Voggel, N., Roessler, K., Dörfler, A.,... Rampp, S. (2021). MEG Node Degree Differences in Patients with Focal Epilepsy vs. Controls-Influence of Experimental Conditions. Brain Sciences, 11(12). https://dx.doi.org/10.3390/brainsci11121590
MLA:
Vogel, Stephan, et al. "MEG Node Degree Differences in Patients with Focal Epilepsy vs. Controls-Influence of Experimental Conditions." Brain Sciences 11.12 (2021).
BibTeX: Download