Ac current conduction in biological tissues

• Autorzy: Krizaj D. , Valencic V.
• Języki publikacji: EN

Abstrakty

EN

Electrical properties and structure of biological tissue determine the manner of current conduction through them. Numerical simulation of a cell suspension is performed demonstrating the effect of frequency-dependent effective specific conductivity and permittivity. For AC current conduction, magnetic induction effects can be neglected in a wide frequency range. Displacement current is in general smaller than conductive, however, for proper analysis it cannot be completely neglected.

Słowa kluczowe

EN

numerical analysis; bioelectric phenomena; biological tissue; biomagnetism; cellular biophysics; muscle; permittivity; numerical simulation; frequency range

PL

analiza numeryczna; zjawisko bioelektryczne; tkanka biologiczna; biomagnetyzm; biofizyka komórkowa; mięsień; przenikalność elektryczna; symulacja numeryczna; zasięg częstotliwości

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2002
• Tom: Vol. 43, no 4
• Strony: 421--426
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Krizaj D.

• Faculty of Electrical Engineering, University of Ljubljana, Trżaśka 25, 1000 Ljubljana, Slovenia

autor

Valencic V.

• Faculty of Electrical Engineering, University of Ljubljana, Trżaśka 25, 1000 Ljubljana, Slovenia

Bibliografia

• 1. A. Grimnes, O.G. Martinsen, Bioimpedance and bioelectricity basics, Acad. Press, Harcourt, San Diego 2000.
• 2. J.P. Reilly, Applied bioelectricity: from electrical stimulation to electropathology, Springer, New York 1998.
• 3. R. Plonsey, D.B. Heppner, Considerations of quasi-stationarity in electrophysiological systems, Bul. Math. Biophys, 29, 657-664, 1967.
• 4. D. Križaj, J. Jan, V. Valenèiè, Numerical computation impedances of a human tooth for estimation of the root canal length, IEEE Trans on Biomedical Engineering, 49, 7, July 2002.
• 5. FEMLAB Users Manual 2.1, Comsol AB, Sweden, 2001, also on http://www.femlab.com