Title :
Difference between electrical and magnetic nerve stimulation: a case for the transverse field?
Author :
Struijk, Johannes J. ; Schnabel, Veit
Author_Institution :
Center for Sensory Motor Interaction, Aalborg Univ., Denmark
Abstract :
The cable model for nerve activation is based, among other things, on the assumption of cylindrical symmetry. For the externally applied field in the case of electrical or magnetic stimulation the implication is that the transverse component of the field should be negligible. The present theoretical work shows that for electrical stimulation this assumption is valid in most of the cases, but for magnetic stimulation the assumption is not generally valid, although, with the note that this is strongly dependent on the resistivity of the peirineurium of the nerve.
Keywords :
Poisson equation; bioelectric phenomena; biomagnetism; neurophysiology; patient treatment; 3D model; Poisson equation; cable equation; cable model; cylindrical symmetry; electrical nerve stimulation; externally applied field; magnetic nerve stimulation; model parameter; nerve activation; nerve fibers; peirineurium resistivity; polarization; rotational symmetry; subthreshold transmembrane potential; transverse field; Biomembranes; Coils; Computer aided software engineering; Conductivity; Difference equations; Electrical stimulation; Humans; Magnetic stimulation; Nerve fibers; Optical fiber cables;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1019084
