Detail publikace

Anisotropic Conductivity of Rat Head Phantom and its Influence on Electroencephalogram Source Localization

LÁČÍK, J. KOUDELKA, V. VEJMOLA, Č. KUŘÁTKO, D. VANĚK, J. WÓJCIK, D. PÁLENÍČEK, T. RAIDA, Z.

Originální název

Anisotropic Conductivity of Rat Head Phantom and its Influence on Electroencephalogram Source Localization

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In this paper we deal with a simplified anisotropic rat head phantom development and the investigation of the influence of the anisotropic white matter on electroencephalogram source localization. The proposed phantom is based on the cubic cross cell composition combined with agar mixture to set desired electrical conductivity anisotropic ratio. For the fabrication of the phantom, the 3D printed technology is exploited. Starting from a real rat brain, we proposed a simplified brain model incorporating the actual dimensions, shape and conductivity parameters of both grey and white matter containing simultaneously relevant deep-brain electrical signal sources. Five testing dipoles were located in the areas corresponding to the active brain regions. A single dipole localization error was calculated by comparing an inverse solution with a dipole position obtained from a computer tomography image. Neglecting anisotropy had a rather weak effect on localization error of a single testing dipole in our model. The reliability map was computed and interpreted in terms of spatial similarity between distributed inverse solutions involving isotropic and anisotropic forward models. We found spatially specific error increases located close to the electrodes and in the vicinity of anisotropic compartment. Hence, areas to be most sensitive to neglecting anisotropy in our model were identified.

Klíčová slova

Anisotropic magnetoresistance; Brain modeling; Conductivity; Location awareness; Phantoms; Rats; White matter

Autoři

LÁČÍK, J.; KOUDELKA, V.; VEJMOLA, Č.; KUŘÁTKO, D.; VANĚK, J.; WÓJCIK, D.; PÁLENÍČEK, T.; RAIDA, Z.

Vydáno

20. 1. 2022

Nakladatel

IEEE

Místo

USA

ISSN

2169-3536

Periodikum

IEEE Access

Ročník

10

Číslo

1

Stát

Spojené státy americké

Strany od

9877

Strany do

9888

Strany počet

12

URL

https://ieeexplore.ieee.org/document/9684466

Plný text v Digitální knihovně

http://hdl.handle.net/11012/204597

BibTex

@article{BUT177469,
  author="Jaroslav {Láčík} and Vlastimil {Koudelka} and Čestmír {Vejmola} and David {Kuřátko} and Jiří {Vaněk} and Daniel Krzysztof {Wójcik} and Tomáš {Páleníček} and Zbyněk {Raida}",
  title="Anisotropic Conductivity of Rat Head Phantom and its Influence on Electroencephalogram Source Localization",
  journal="IEEE Access",
  year="2022",
  volume="10",
  number="1",
  pages="9877--9888",
  doi="10.1109/ACCESS.2022.3143952",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/9684466"
}