Title :
A medical application of electromagnetic fields: The magnetic stimulation of nerve fibers inside a cylindrical tissue
Author :
Plesa, M. ; Darabant, L. ; Ciupa, R. ; Darabant, A.
Author_Institution :
Electrotechnics Dept., Tech. Univ. of Cluj-Napoca, Cluj-Napoca
Abstract :
A model is presented that predicts the electric field induced in the arm during magnetic stimulation of a peripheral nerve. The arm is represented as a homogeneous, cylindrical volume conductor. The electric field arises from two sources: the time - varying magnetic field and the accumulation of charge on the tissue - air surface. In magnetic stimulation both of these contributions are significant. A passive cable model describes the response of the nerve fiber to this induced electric field. Once the coil´s position, orientation and shape are given, and the resistance, capacitance and the initial voltage of the stimulating circuit are specified, the resulting transmembrane potential of the fiber is calculated as a function of distance and time.
Keywords :
bioelectric potentials; biological tissues; biomagnetism; neurophysiology; patient treatment; cylindrical tissue; cylindrical volume conductor; electromagnetic field application; handicaps; homogeneous conductor; magnetic stimulation; medical application; nerve fibers; passive cable model; peripheral nerve; transmembrane potential; Biomedical equipment; Conductors; Electromagnetic fields; Magnetic fields; Magnetic stimulation; Medical services; Nerve fibers; Predictive models; Shape; Surface resistance;
Conference_Titel :
Optimization of Electrical and Electronic Equipment, 2008. OPTIM 2008. 11th International Conference on
Conference_Location :
Brasov
Print_ISBN :
978-1-4244-1544-1
Electronic_ISBN :
978-1-4244-1545-8
DOI :
10.1109/OPTIM.2008.4602348
