A computational biomarker of juvenile myoclonic epilepsy from resting-state MEG

Marinho A. Lopes, Dominik Krzemiński, Khalid Hamandi, Krish D. Singh, Naoki Masuda, John R. Terry, Jiaxiang Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: For people with idiopathic generalized epilepsy, functional networks derived from their resting-state scalp electrophysiological recordings have shown an inherent higher propensity to generate seizures than those from healthy controls when assessed using the concept of brain network ictogenicity (BNI). Herein we tested whether the BNI framework is applicable to resting-state magnetoencephalography (MEG) from people with juvenile myoclonic epilepsy (JME). Methods: The BNI framework consists in deriving a functional network from apparently normal brain activity, placing a mathematical model of ictogenicity into the network and then computing how often such network generates seizures in silico. We considered data from 26 people with JME and 26 healthy controls. Results: We found that resting-state MEG functional networks from people with JME are characterized by a higher propensity to generate seizures (i.e., higher BNI) than those from healthy controls. We found a classification accuracy of 73%. Conclusions: The BNI framework is applicable to MEG and was capable of differentiating people with epilepsy from healthy controls. Significance: The BNI framework may be applied to resting-state MEG to aid in epilepsy diagnosis.

Original languageEnglish
Pages (from-to)922-927
Number of pages6
JournalClinical Neurophysiology
Volume132
Issue number4
DOIs
Publication statusPublished - 2021 Apr
Externally publishedYes

Keywords

  • Biomarker
  • Epilepsy diagnosis
  • Functional connectivity
  • Juvenile myoclonic epilepsy
  • MEG
  • Phenomenological model

ASJC Scopus subject areas

  • Sensory Systems
  • Neurology
  • Clinical Neurology
  • Physiology (medical)

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