Skip to main content
SpringerLink
Log in

The impact of inhomogeneous tissue anisotropy on potential distribution within head model

  • Scientific Note
  • Published:
Australasian Physics & Engineering Sciences in Medicine Aims and scope Submit manuscript

Abstract

This paper investigates the influence of inhomogeneous head tissue conductivity on EEGs. A head model with inhomogeneity of radial and tangential conductivity is built up. Based on this model the EEG signals are calculated using the finite elements method. The results show that the inhomogeneous radial and tangential conductivity of skull tissue, which has been ignored so far, can cause about 5% difference compared with commonly used homogeneous conductivity head models.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Reference

  1. Peters, M. J. and de Munck, J.On the forward and inverse problem for EEG and MEG, in Auditory Evoked Magnetic Fields and Electric Potential, F. Grandiori, M. Hoke and G. L. Romani, Eds, Basel, Karger, Vol. 6, pp. 70–102, 1990.

    Google Scholar 

  2. Thevenet, M. et al,The finite element method for a realistic head model of electrical brain activities: Preliminary results, Clin. Physiol. Meas., Vol. 12, Suppl. A, pp. 89–94, 1991.

    Article  Google Scholar 

  3. Haueisen, J. et al,Influence of tissue resistivities on neuromagnetic fields and electric potentials studied with a finite element model of the head, IEEE Trans. Biomed. Eng., Vol. 44, pp. 727–735, 1997.

    Article  CAS  PubMed  Google Scholar 

  4. Marin, G. et al,Influence of skull anisotropy for the forward and inverse problem in EEG: simulation studies using FEM on realistic head models, Human Brain Mapping, Vol. 6, pp. 250–269, 1998.

    Article  CAS  PubMed  Google Scholar 

  5. Witwer, J. G., Trezek, G. J. and Jewett, D. L.The effect of media inhomogeneities upon intracranial electrical fields, IEEE Trans. Biomed. Eng., Vol.19, pp. 352–362, 1972.

    Article  CAS  PubMed  Google Scholar 

  6. P. Wen, P. and Pope, K.The study of inhomogeneous human head models for EEG forward problem based on tissue conductivities, International conference on mathematics and engineering technology in medicine and biological science. Las Vegas, Nevada, USA, June 25–28, 2001, pp. 351-356.

  7. Wen, P., He, F. and Sammut, K.The inhomogeneous conductivity property of cranial tissues and its representation in numerical head model, Australasian physical & engineering sciences in medicine, Vol.22, No. 3, pp. 92–98, 1999.

    CAS  Google Scholar 

  8. Meijs, J. W. H. et al,On the numerical accuracy of the boundary element method, IEEE Trans. Biomed. Eng., Vol. 36, No. 10, pp. 1038–1049, 1989.

    Article  CAS  PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Engineering and Surveying, University of Southern Queensland, 4350, QLD, Australia

    P. Wen

Authors
  1. P. Wen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to P. Wen.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wen, P. The impact of inhomogeneous tissue anisotropy on potential distribution within head model. Australas. Phys. Eng. Sci. Med. 26, 115–118 (2003). https://doi.org/10.1007/BF03178780

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03178780

Key words

Search

Navigation