Field Distribution of Transcranial Static Magnetic Stimulation in Realistic Human Head Model.

ABSTRACT:

Objective

The objective of this work was to characterize the magnetic field (B-field) that arises in a human brain model from the application of transcranial static magnetic field stimulation (tSMS).

Materials and methods

The spatial distribution of the B-field magnitude and gradient of a cylindrical, 5.08 cm × 2.54 cm NdFeB magnet were simulated in air and in a human head model using the finite element method and calibrated with measurements in air. The B-field was simulated for magnet placements over prefrontal, motor, sensory, and visual cortex targets. The impact of magnetic susceptibility of head tissues on the B-field was quantified.

Results

Peak B-field magnitude and gradient respectively ranged from 179-245 mT and from 13.3-19.0 T/m across the cortical targets

SUBMITTER: Tharayil JJ 

PROVIDER: S-EPMC5893444 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature