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The utility of Magnetoencephalography in Multiple Sclerosis - a Systematic Review

H. Khan, M.B. Sami, V. Litvak
2021 NeuroImage: Clinical  
To date, no review has been undertaken to synthesise all MEG studies in Multiple Sclerosis (MS). We undertook a Systematic Review of the utility of MEG in MS.  ...  We included original research articles with a cohort of minimum of five multiple sclerosis patients and quantifying of at least one MEG parameter.  ...  In the resting state analysis use of PLI as a measure of connectivity to construct the Minimum Spanning Tree using a graph theoretic approach showed patients had a higher functional connectivity in delta  ... 
doi:10.1016/j.nicl.2021.102814 pmid:34537682 pmcid:PMC8455859 fatcat:kiw5wkbfrffihobjh5odpi6ajy

Brain functional networks become more connected as amyotrophic lateral sclerosis progresses: a source level magnetoencephalographic study

Sorrentino Pierpaolo, Rucco Rosaria, Jacini Francesca, Trojsi Francesca, Lardone Anna, Baselice Fabio, Femiano Cinzia, Santangelo Gabriella, Granata Carmine, Vettoliere Antonio, Monsurrò Maria Rosaria, Tedeschi Gioacchino (+1 others)
2018 NeuroImage: Clinical  
Such modified brain topology is sub-optimal as compared to controls. Within this framework, our study shows that brain networks become more connected according to disease staging in ALS patients.  ...  In all frequency bands, it was evident that, the more advanced the disease, the more connected, scale-free and disassortative the brain networks. No differences were evident in specific brain areas.  ...  We used the minimum spanning tree (MST) to avoid some of the biases in traditional network analyses (Stam, 2014; Stam et al., 2014; Tewarie et al., 2015; van Wijk et al., 2010) , to allow for an unbiased  ... 
doi:10.1016/j.nicl.2018.08.001 pmid:30186760 pmcid:PMC6120607 fatcat:d45xub6nvbcs5j42njx5owsmey

The trees and the forest: Characterization of complex brain networks with minimum spanning trees

C.J. Stam, P. Tewarie, E. Van Dellen, E.C.W. van Straaten, A. Hillebrand, P. Van Mieghem
2014 International Journal of Psychophysiology  
Keywords: Brain networks Graph theory Minimum spanning tree Functional connectivity EEG MEG In recent years there has been a shift in focus from the study of local, mostly task-related activation to the  ...  We then review early and more recent applications of the MST to EEG and MEG in epilepsy, development, schizophrenia, brain tumours, multiple sclerosis and Parkinson's disease, and show how MST characterization  ...  Three recent studies applied minimum spanning tree analysis to connectivity matrices based upon MEG source space and the PLI.  ... 
doi:10.1016/j.ijpsycho.2014.04.001 pmid:24726900 fatcat:zhqnstounrahpbu6fjhlcj3ame

Cognitive rehabilitation and mindfulness in multiple sclerosis (REMIND-MS): a study protocol for a randomised controlled trial

Ilse M. Nauta, Anne E. M. Speckens, Roy P. C. Kessels, Jeroen J. G. Geurts, Vincent de Groot, Bernard M. J. Uitdehaag, Luciano Fasotti, Brigit A. de Jong
2017 BMC Neurology  
This study will also provide information on changes in functional brain networks in relation to cognitive function.  ...  Cognitive problems frequently occur in patients with multiple sclerosis (MS) and profoundly affect their quality of life.  ...  Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.  ... 
doi:10.1186/s12883-017-0979-y pmid:29162058 pmcid:PMC5698960 fatcat:rnxin5xjkzcejl4mypqphfhypa

Cognitive functioning and functional brain networks in postoperative WHO grade I meningioma patients

David van Nieuwenhuizen, Linda Douw, Martin Klein, Saskia M. Peerdeman, Jan J. Heimans, Jaap C. Reijneveld, Cornelis J. Stam, Arjan Hillebrand
2018 Journal of Neuro-Oncology  
Keywords Cognitive functioning · Functional connectivity · Magnetoencephalography · Resting-state networks · Meningioma · Minimum spanning tree Abbreviations RSN Resting-state network PLI Phase lag index  ...  Magnetoencephalography (MEG) analysis of resting-state functional networks (RSNs) could help to understand the neurophysiological basis of cognitive impairment in these patients.  ...  Olde Dubbelink for their input on the definition of resting-state networks; and the MEG technicians of the Department of Clinical Neurophysiology, P.J. Ris, N. Sijsma and K.  ... 
doi:10.1007/s11060-018-2987-1 pmid:30219943 fatcat:xt5kidazmzfutlbpsj26gtcsd4

Topological segregation of functional networks increases in developing brains [article]

Wei He, Paul F Sowman, Jon Brock, Andrew C Etchell, Cornelis J Stam, Arjan Hillebrand
2018 bioRxiv   pre-print
In children aged from 4 to 12 years, as well as adults, age appropriate magnetoencephalography was used to estimate unbiased network topology, using minimum spanning tree (MST) constructed from phase synchrony  ...  A growing literature conceptualises human brain development from a network perspective, but it remains unknown how functional brain networks are refined during the preschool years.  ...  Neuroimage. 2016; 142:324-336. 570 doi: 10.1016/j.neuroimage.2016.07.057. 571 572 ysis using minimum spanning trees in Multiple Sclerosis: An MEG source-space study.  ... 
doi:10.1101/378562 fatcat:ffa5vfcltzad7nc6h63isvfc44

The Union of Shortest Path Trees of Functional Brain Networks

Jil Meier, Prejaas Tewarie, Piet Van Mieghem
2015 Brain Connectivity  
The minimum spanning tree, which has been successful in a lot of recent studies to comprise important features of the functional brain network, is always included in the USPT.  ...  Using data from magnetoencephalography, we applied the USPT as a method to find differences in the network topology of multiple sclerosis patients and healthy controls.  ...  MS, multiple sclerosis; USPT, union of shortest path trees. UNION OF SHORTEST PATH TREES OF FUNCTIONAL BRAIN NETWORKS  ... 
doi:10.1089/brain.2014.0330 pmid:26027712 fatcat:l54mbw2lhjegpjjk3wkcwt7ywu

A Comprehensive Review of Magnetoencephalography (MEG) Studies for Brain Functionality in Healthy Aging and Alzheimer's Disease (AD)

Pravat K. Mandal, Anwesha Banerjee, Manjari Tripathi, Ankita Sharma
2018 Frontiers in Computational Neuroscience  
Single channel, connectivity as well as brain network analysis using MEG data in resting state and task-based experiments were analyzed from existing literature.  ...  It has been reported from multiplex network of MEG study in AD in the affected regions of hippocampus, posterior default mode network (DMN) and occipital areas, however, conclusions cannot be drawn due  ...  Source-space weighted functional networks were characterized with graph theoretical measures in event-related network analysis (ERNA) for a MEG based cognitive study.  ... 
doi:10.3389/fncom.2018.00060 pmid:30190674 pmcid:PMC6115612 fatcat:u2jaxvd6xrf6jfesn4hy7eumdy

2014 Joint ACTRIMS-ECTRIMS Meeting (MSBoston 2014): Oral Presentations

2014 Multiple Sclerosis  
In visualized foci, spread of gad is limited in space, perhaps by an inflammatory scar.  ...  Conclusions: Our study underlines the relevance of thalamic regulation of the brain networks involved in cognitive processes.  ...  We computed conventional network metrics and analyzed the minimum spanning tree (MST), a sub-network containing the strongest connections. Results: MS patients showed marked thalamic atrophy.  ... 
doi:10.1177/1352458514546076 pmid:25205047 pmcid:PMC4518813 fatcat:5giyc6lpwrdhzgjat3fhfcfcmi

Changes in the Functional Brain Network of Children Undergoing Repeated Epilepsy Surgery: An EEG Source Connectivity Study

Giulia Iandolo, Nitish Chourasia, Georgios Ntolkeras, Joseph R. Madsen, Christos Papadelis, Ellen Grant, Phillip L. Pearl, Fabrizio Taffoni, Eleonora Tamilia
2021 Diagnostics  
We aimed to estimate functional brain connectivity using scalp EEG and its evolution over time in patients who had repeated surgery (RS-group, n = 9) and patients who had one successful surgery (seizure-free  ...  Since epilepsy is increasingly conceptualized as a network disorder, understanding how brain regions interact may be critical for planning re-operation in these patients.  ...  Example of source connectivity and minimum spanning tree in three frequency bands.  ... 
doi:10.3390/diagnostics11071234 fatcat:slrjsvfumrelfobqdkk62fngwy

Sessions 1 - 11

2016 Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration  
Acknowledgements: We thank the participants, without whom this study would not be possible, and also MND Association UK and NIHR CRN for support.  ...  Acknowledgements: JCK holds a NIHR Clinical Acknowledgements: This study has been funded by Acknowledgements: Fondation Thierry Latran, fondation pour la recherche sur le cerveau, association francaise  ...  the brain network) were computed.  ... 
doi:10.1080/21678421.2016.1231971 pmid:27827537 fatcat:obvg6ncxnfdbfjdm7lixrhmpdq

Multimodal multilayer network centrality relates to executive functioning [article]

Lucas C. Breedt, Fernando A.N. Santos, Arjan Hillebrand, Liesbeth Reneman, Anne-Fleur van Rootselaar, Menno M. Schoonheim, Cornelis J. Stam, Anouk Ticheler, Betty Tijms, Dick J. Veltman, Chris Vriend, Margot J. Wagenmakers (+4 others)
2021 bioRxiv   pre-print
Brain networks can be constructed using different modalities: diffusion MRI (dMRI) can be used to reconstruct structural networks, while resting-state fMRI (rsfMRI) and magnetoencephalography (MEG) yield  ...  Multilayer network analysis may particularly advance our understanding of the interplay between different brain network aspects in clinical populations, where network alterations differ across modalities  ... is funded by 496 Gieskes-Strijbis Foundation, the Alzheimer's Society in the Netherlands and Brain Foundation  ... 
doi:10.1101/2021.06.28.450180 fatcat:xofwpq6ftbdlpiwlizkrupihb4

Reliability of Static and Dynamic Network Metrics in the Resting-State: A MEG-Beamformed Connectivity Analysis

Stavros I. Dimitriadis, Bethany Routley, David E. Linden, Krish D. Singh
2018 Frontiers in Neuroscience  
The coordinated activity of the resting state can be explored via magnetoencephalography (MEG) by studying frequency-dependent functional brain networks at the source level.  ...  The reliability of chronnectomics have been evaluated also in a second dataset. This study encourages the analysis of MEG resting-state via DFC.  ...  However, no study has ever explored the reliability of both static and dynamic networks at the source space in MEG.  ... 
doi:10.3389/fnins.2018.00506 pmid:30127710 pmcid:PMC6088195 fatcat:mpxnhkrhnfe75h3bd67zfukec4

Reliability of Static and Dynamic Network Metrics in the Resting-State: A MEG-beamformed Connectivity Analysis [article]

Stavros I Dimitriadis, Bethany Routley, David E Linden, Krish D Singh
2018 biorxiv/medrxiv   pre-print
The coordinated activity of the resting state can be explored via magnetoencephalography (MEG) by studying frequency-dependent functional brain networks at the source level.  ...  This analysis encourages the analysis of MEG resting-state via DFC.  ...  However, no study has ever explored the reliability of both static and dynamic networks at the source space in MEG.  ... 
doi:10.1101/358192 fatcat:xcvdd5kmkbcajptxxtnaylsnpe

Virtual localization of the seizure onset zone: Using non-invasive MEG virtual electrodes at stereo-EEG electrode locations in refractory epilepsy patients

Erika L. Juárez-Martinez, Ida A. Nissen, Sander Idema, Demetrios N. Velis, Arjan Hillebrand, Cornelis J. Stam, Elisabeth C.W. van Straaten
2018 NeuroImage: Clinical  
of a later resected brain area (RA) as an approximation of the SOZ.  ...  Spectral, functional connectivity and functional network properties were obtained for both, MEG-VEs and SEEG time series, and their correlation and reliability were established.  ...  We confirm that we have read the Journal's position on issues involved in ethical publication and affirm that this report is consistent with those guidelines. Appendix A.  ... 
doi:10.1016/j.nicl.2018.06.001 pmid:30009129 pmcid:PMC6041424 fatcat:rgsw36hz2nhxjnjwrpv5ynhgsm
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