Overview of MEG functional connectivity studies on lesional epilepsy patients.

Overview of functional connectivity and network studies based on MEG recordings in brain tumour and TLE patients. The measure for functional connectivity used in the study is given in the Methods column. Abbreviations: SL = Synchronization Likelihood; PLI = Phase Lag Index; L/Ls = normalized average path length; C/Cs = normalized average clustering coefficient; degree cor. = degree correlation (measure for the tendency of vertices to connect to other vertices with a similar degree).1MEG recordings used in these studies were obtained after surgery, which might also have had an impact on functional connectivity levels and network topology.2No information available on epilepsy incidence in these patients.3This study did not compare patients to healthy controls, but compared MEG recordings of patients before and after resection of the brain tumour.4This study analyzed patients with non-glial lesions, and should therefore be considered only as a reference for patients with NGL in the present study.