Publication result detail

Influence of Physical Models of Electrodes on Rat’s Head Forward Modelling

KUŘÁTKO, D.; LÁČÍK, J.; RAIDA, Z.; WÓJCIK, D.; KOUDELKA, V.

Original Title

Influence of Physical Models of Electrodes on Rat’s Head Forward Modelling

English Title

Influence of Physical Models of Electrodes on Rat’s Head Forward Modelling

Type

Paper in proceedings (conference paper)

Original Abstract

Reliable inverse imaging of source currents in rat’s brain requires accurate models of fields and interfaces. Accuracy of field models can be influenced by a proper representation of electrodes used for sensing potentials. In the paper, we study the effect of realistic modelling of electrodes on the distribu-tion of electric field intensity in the head. Fields are evaluated for three commonly used configurations of electrodes using a three-dimensional finite element model of rat’s head comprising the brain, the cerebrospinal fluid, and the skull. Simulations show a lower amplitude of electric field intensity if realistic models of electrodes are considered. Moreover, electric field in-tensity near electrode models is shown to be slightly influenced. Therefore, realistic modelling of electrodes can improve the accuracy of an inverse im-aging, and consequently make the localization of current sources in rat’s brain more accurate.

English abstract

Reliable inverse imaging of source currents in rat’s brain requires accurate models of fields and interfaces. Accuracy of field models can be influenced by a proper representation of electrodes used for sensing potentials. In the paper, we study the effect of realistic modelling of electrodes on the distribu-tion of electric field intensity in the head. Fields are evaluated for three commonly used configurations of electrodes using a three-dimensional finite element model of rat’s head comprising the brain, the cerebrospinal fluid, and the skull. Simulations show a lower amplitude of electric field intensity if realistic models of electrodes are considered. Moreover, electric field in-tensity near electrode models is shown to be slightly influenced. Therefore, realistic modelling of electrodes can improve the accuracy of an inverse im-aging, and consequently make the localization of current sources in rat’s brain more accurate.

Keywords

Forward model, rat’s brain, electrode models, electric source imaging.

Key words in English

Forward model, rat’s brain, electrode models, electric source imaging.

Authors

KUŘÁTKO, D.; LÁČÍK, J.; RAIDA, Z.; WÓJCIK, D.; KOUDELKA, V.

RIV year

2021

Released

11.07.2019

Publisher

Springer International Publishing

Location

Coimbra

ISBN

978-3-030-31635-8

Book

XV Mediterranean Conference on Medical and Biological Engineering and Computing – MEDICON 2019

ISBN

1680-0737

Periodical

IFMBE Proceedings

Volume

76

State

French Republic

Pages from

217

Pages to

225

Pages count

9

BibTex

@inproceedings{BUT157653,
  author="David {Kuřátko} and Jaroslav {Láčík} and Zbyněk {Raida} and Daniel Krzysztof {Wójcik} and Vlastimil {Koudelka}",
  title="Influence of Physical Models of Electrodes on Rat’s Head Forward Modelling
",
  booktitle="XV Mediterranean Conference on Medical and Biological Engineering and Computing – MEDICON 2019",
  year="2019",
  journal="IFMBE Proceedings",
  volume="76",
  pages="217--225",
  publisher="Springer International Publishing",
  address="Coimbra",
  doi="10.1007/978-3-030-31635-8\{_}26",
  isbn="978-3-030-31635-8",
  issn="1680-0737"
}