Determination of excitation thresholds of nerve fibers during magnetic stimulation

Author

Hsu, Kai-Hsiung ; Durand, Dominique M.

Author_Institution

Appl. Neural Control Lab., Case Western Reserve Univ., Cleveland, OH, USA

Volume

1

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

395

Abstract

An algorithm for predicting the excitation thresholds during magnetic stimulation has been developed and tested on a number of coil and axon configurations. The results show that (1) the coil geometric parameters can be taken into account with the inductance, (2) the threshold capacitor voltage has a minimum value for various geometric parameters of a coil as well as the coil inductance, (3) the transmembrane potential threshold for the passive steady-state model is independent of the axon location and the fiber diameter, and decays with the coil inductance. Therefore, this algorithm provides a fast and powerful method for predicting excitation threshold for magnetic stimulation

Keywords

biomagnetism; coils; inductance; neurophysiology; patient treatment; physiological models; algorithm; axon configurations; coil configurations; coil geometric parameters; excitation thresholds; fiber diameter; inductance; magnetic stimulation; nerve fibers; passive steady-state model; threshold capacitor voltage; transmembrane potential threshold; Capacitors; Coils; Inductance; Magnetic stimulation; Nerve fibers; Prediction algorithms; Solid modeling; Steady-state; Testing; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.657010

Filename

657010