Calculating the Current Density and Electric Field in Human Head by Multichannel Transcranial Magnetic Stimulation
Journal article, 2009
In this paper, we present a designed multichannel transcranial magnetic stimulation (mTMS) system with 40 small coils. The induced current density and electric field in realistic human head model by mTMS were calculated by impedance method and the results were compared with figure-of-eight coil. The dependence of stimulation focality on the coil current direction was investigated. Properly adjusting the input current phases can improve the magnitude of the induced fields in the brain.
electric field
Current density
tissues
impedance method
multichannel
transcranial magnetic stimulation (mTMS)
coils
brain
human motor cortex
Author
M. Lu
University of Lisbon
S. Ueno
Kyushu University
T. Thorlin
Sahlgrenska University Hospital
Mikael Persson
Chalmers, Signals and Systems, Signal Processing and Biomedical Engineering
IEEE Transactions on Magnetics
0018-9464 (ISSN)
Vol. 45 3 1662-1665 4787396Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/TMAG.2009.2012770