A cortical potential imaging study from simultaneous extra- and intracranial electrical recordings by means of the finite element method.

NeuroImage
Yingchun ZhangBin He

Abstract

In the present study, we have validated the cortical potential imaging (CPI) technique for estimating cortical potentials from scalp EEG using simultaneously recorded electrocorticogram (ECoG) in the presence of strong local inhomogeneity, i.e., Silastic ECoG grid(s). The finite element method (FEM) was used to model the realistic postoperative head volume conductor, which includes the scalp, skull, cerebrospinal fluid (CSF) and brain, as well as the Silastic ECoG grid(s) implanted during the surgical evaluation in epilepsy patients, from the co-registered magnetic resonance (MR) and computer tomography (CT) images. A series of computer simulations were conducted to evaluate the present FEM-based CPI technique and to assess the effect of the Silastic ECoG grid on the scalp EEG forward solutions. The present simulation results show that the Silastic ECoG grid has substantial influence on the scalp potential forward solution due to the distortion of current pathways in the presence of the extremely low conductive materials. On the other hand, its influence on the estimated cortical potential distribution is much less than that on the scalp potential distribution. With appropriate numerical modeling and inverse estimation techniqu...Continue Reading

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Citations

Sep 4, 2012·Brain Topography·Benjamin LanferCarsten Wolters
Apr 7, 2007·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Lei DingBin He
Feb 20, 2010·Computational Intelligence and Neuroscience·Federica VattaFrancesco Di Salle
May 12, 2007·Applied Physics Letters·Yingchun ZhangBin He
Nov 19, 2010·Human Brain Mapping·Olaf SteinsträterCarsten H Wolters
Aug 19, 2007·IEEE Transactions on Bio-medical Engineering·Carsten H WoltersUlrich Hartmann
Apr 12, 2011·IEEE Transactions on Bio-medical Engineering·Bin HeHan Yuan
Nov 5, 2008·IEEE Reviews in Biomedical Engineering·Bin He, Zhongming Liu
Aug 11, 2006·IEEE Engineering in Medicine and Biology Magazine : the Quarterly Magazine of the Engineering in Medicine & Biology Society·Zhongming LiuBin He
Jun 3, 2011·IEEE Transactions on Bio-medical Engineering·Huanhuan GuJon P Webb
Jul 15, 2015·International Journal of Neural Systems·Yang LiuYingchun Zhang
Mar 1, 2012·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Nicolás von EllenriederCarlos H Muravchik
Oct 17, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Won Hee LeeBin He
Aug 11, 2010·NeuroImage·Christopher K KovachRalph Adolphs
Mar 7, 2009·NeuroImage·Tonio BallAndreas Schulze-Bonhage
Mar 31, 2017·Journal of Neural Engineering·Chuan ZhangYingchun Zhang
Sep 18, 2007·Journal of Neural Engineering·Jing LiBin He
Mar 15, 2019·Journal of Neural Engineering·Chuan ZhangYingchun Zhang
Nov 17, 2020·Neurorehabilitation and Neural Repair·Rihui LiYingchun Zhang
Dec 1, 2017·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Seyed Amir Hossein HosseiniBin He

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