Study on the effects of skull holes to the scalp EEG by means of finite difference method

Jing Li, Kun Wang, Shan An Zhu, Bin He

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a finite difference method (FDM) was implemented to solve the electroencephalogram (EEG) forward problem for three-concentric-sphere model with skull burr hole. The influence on the EEG forward solutions of the holes in the skull was studied by comparing the forward potential distributions with and without a hole. Computer simulations suggested that the influence of a hole on the EEG recordings strongly depended on the dipole location and orientation. For a radial dipole, the strongest effect on the EEG occurred when it was located below the center of the hole, while for a tangential dipole the strongest effect occurred when it was located below the border of the hole.

Original languageEnglish (US)
Pages (from-to)708-712
Number of pages5
JournalChinese Journal of Biomedical Engineering
Volume26
Issue number5
StatePublished - Oct 2007

Keywords

  • Dipole
  • EEG
  • FDM
  • Forward problem

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