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Influence of isotropic skull models on EEG source localization

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The integrative neuroscience of behavioral control (Neuroscience)
Abstract
We investigated the influence of using simplified skull models on electroencephalogram (EEG) source localization. The simplified skull models were derived from CT and MR images, with isotropic conductivity modeled as either heterogeneous or homogeneous. A total of four simplified head models were compared against a reference model with a skull accurately segmented with CT images. Our results show that the use of a simplified geometry for the skull, can lead to errors of approximately 1 cm for sources located in the central and temporal regions of the brain.
Keywords
skull, CT, head modeling, finite difference method, EEG source localization, isotropic, MRI, REALISTIC HEAD MODELS, DIPOLE ESTIMATION ERRORS, FINITE-DIFFERENCE METHOD, INVERSE PROBLEM, ANISOTROPIC CONDUCTIVITIES, SIMULATION, RECIPROCITY

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MLA
Montes Restrepo, Victoria Eugenia, Pieter van Mierlo, José David Lopez, et al. “Influence of Isotropic Skull Models on EEG Source Localization.” IEEE Engineering in Medicine and Biology Society Conference Proceedings. New York, NY, USA: IEEE, 2013. 3295–3298. Print.
APA
Montes Restrepo, V. E., van Mierlo, P., Lopez, J. D., Hallez, H., & Vandenberghe, S. (2013). Influence of isotropic skull models on EEG source localization. IEEE Engineering in Medicine and Biology Society Conference Proceedings (pp. 3295–3298). Presented at the 35th Annual international conference of the IEEE Engineering in Medicine and Biology Society (EMBC), New York, NY, USA: IEEE.
Chicago author-date
Montes Restrepo, Victoria Eugenia, Pieter van Mierlo, José David Lopez, Hans Hallez, and Stefaan Vandenberghe. 2013. “Influence of Isotropic Skull Models on EEG Source Localization.” In IEEE Engineering in Medicine and Biology Society Conference Proceedings, 3295–3298. New York, NY, USA: IEEE.
Chicago author-date (all authors)
Montes Restrepo, Victoria Eugenia, Pieter van Mierlo, José David Lopez, Hans Hallez, and Stefaan Vandenberghe. 2013. “Influence of Isotropic Skull Models on EEG Source Localization.” In IEEE Engineering in Medicine and Biology Society Conference Proceedings, 3295–3298. New York, NY, USA: IEEE.
Vancouver
1.
Montes Restrepo VE, van Mierlo P, Lopez JD, Hallez H, Vandenberghe S. Influence of isotropic skull models on EEG source localization. IEEE Engineering in Medicine and Biology Society Conference Proceedings. New York, NY, USA: IEEE; 2013. p. 3295–8.
IEEE
[1]
V. E. Montes Restrepo, P. van Mierlo, J. D. Lopez, H. Hallez, and S. Vandenberghe, “Influence of isotropic skull models on EEG source localization,” in IEEE Engineering in Medicine and Biology Society Conference Proceedings, Osaka, Japan, 2013, pp. 3295–3298.
@inproceedings{4241673,
  abstract     = {We investigated the influence of using simplified skull models on electroencephalogram (EEG) source localization. The simplified skull models were derived from CT and MR images, with isotropic conductivity modeled as either heterogeneous or homogeneous. A total of four simplified head models were compared against a reference model with a skull accurately segmented with CT images. Our results show that the use of a simplified geometry for the skull, can lead to errors of approximately 1 cm for sources located in the central and temporal regions of the brain.},
  author       = {Montes Restrepo, Victoria Eugenia and van Mierlo, Pieter and Lopez, José David and Hallez, Hans and Vandenberghe, Stefaan},
  booktitle    = {IEEE Engineering in Medicine and Biology Society Conference Proceedings},
  isbn         = {9781457702167},
  issn         = {1557-170X},
  keywords     = {skull,CT,head modeling,finite difference method,EEG source localization,isotropic,MRI,REALISTIC HEAD MODELS,DIPOLE ESTIMATION ERRORS,FINITE-DIFFERENCE METHOD,INVERSE PROBLEM,ANISOTROPIC CONDUCTIVITIES,SIMULATION,RECIPROCITY},
  language     = {eng},
  location     = {Osaka, Japan},
  pages        = {3295--3298},
  publisher    = {IEEE},
  title        = {Influence of isotropic skull models on EEG source localization},
  url          = {http://dx.doi.org/10.1109/EMBC.2013.6610245},
  year         = {2013},
}

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