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Significance of biological membranes for accurate computational dosimetry of low frequency electric fields Cover

Significance of biological membranes for accurate computational dosimetry of low frequency electric fields

Journal of Electrical Bioimpedance
Volume 9 (2018): Issue 1 (January 2018)
By: S. Marzban,  M. Saviz and  F. Towhidkhah  
Open Access
|Dec 2018

Figures & Tables

Fig. 1

Cross-section of meninges in brain [4].
Cross-section of meninges in brain [4].

Fig. 2

The geometry of electrode and the current direction.
The geometry of electrode and the current direction.

Fig. 3

The geometry of layers.
The geometry of layers.

Fig. 4

Geometry of electrodes on human head (a), and electric field distribution in the head model without and with considering meninges while injected current equal to 2 mA (b and c).
Geometry of electrodes on human head (a), and electric field distribution in the head model without and with considering meninges while injected current equal to 2 mA (b and c).

Fig. 5

Electric field in the hypothetical line in the bisector of the electrodes from the center to the skin in the two models.
Electric field in the hypothetical line in the bisector of the electrodes from the center to the skin in the two models.

Fig. 6

Electric field in the hypothetical line from the center of the head model to the center of the anode electrode.
Electric field in the hypothetical line from the center of the head model to the center of the anode electrode.

Brain tissue dielectric properties

Brain layerThicknessConductivity (S/m)
(a)Skin (wet)0.5 mm0.001
Fat1 mm0.05
Skull7 mm0.05
Dura mater0.5 mm0.0025
Arachnoid mater and CSF40 μm2
Pia mater0.6 mm0.05
Grey matter≈ 40 mm0.2
DOI: https://doi.org/10.2478/joeb-2018-0009 | Journal eISSN: 1891-5469
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Language: English
Page range: 48 - 51
Submitted on: Jan 9, 2018
Published on: Dec 19, 2018
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
tDCS,
modeling,
electric field,
meninges
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2018 S. Marzban, M. Saviz, F. Towhidkhah, published by University of Oslo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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