Effects of local tissue conductivity on spherical and realistic head models
Article
Article Title | Effects of local tissue conductivity on spherical and realistic head models |
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ERA Journal ID | 5034 |
Article Category | Article |
Authors | Bashar, Md. Rezaul (Author), Li, Yan (Author) and Wen, Peng (Author) |
Journal Title | Physical and Engineering Sciences in Medicine |
Journal Citation | 33 (3), pp. 233-242 |
Number of Pages | 10 |
Year | 2010 |
Publisher | Springer |
Place of Publication | Netherlands |
ISSN | 0158-9938 |
1879-5447 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s13246-010-0027-3 |
Abstract | In this study, we consider different conductivity values based on tissue location in a human head model. We implement local conductivity (LC) to compute head surface potentials in three-, four-layered spherical and realistic head models using finite element method (FEM). Implementing LC for all head models, we obtain significant scalp potential variations in the term of relative difference measurement (RDM) and magnification (MAG) values with a maximum of 2.03 +/- A 1.81 and 8.27 +/- A 6.36, respectively. We also investigate the effects of conductivity variations (CVs) of head tissue layer on scalp potentials and find a maximum of 2.15 +/- A 1.93 RDM and 8.57 +/- A 6.61 MAG values. Our study concludes that it is important to assign LC to each tissue and it is also important to assign appropriate conductivity value in the construction of a head model for achieving accurate scalp potentials. |
Keywords | conductivity values; human head; tissue |
ANZSRC Field of Research 2020 | 319999. Other biological sciences not elsewhere classified |
320222. Radiology and organ imaging | |
320999. Neurosciences not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Department of Mathematics and Computing |
Department of Electrical, Electronic and Computer Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0825/effects-of-local-tissue-conductivity-on-spherical-and-realistic-head-models
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