23 Jul Brain tissue electromagnetic field analysis method based on transcranial magnetic stimulator
Abstract
The invention relates to the field of biomedical engineering, and discloses a brain tissue electromagnetic field analysis method based on a transcranial magnetic stimulator. The method comprises the following steps of: placing an 8-shaped coil of a transcranial magnetic stimulator on the top of a brain; setting the brain tissue below the central part of the 8-shaped coil to be a plane layered structure; and performing analysis to obtain electromagnetic field distribution of each layer structure in the brain tissue according to the current introduced into the 8-shaped coil and the thickness andthe conductivity of each layer structure in the brain tissue. According to the brain structure electromagnetic field analysis method based on the transcranial magnetic stimulator, a plane layered model of the brain is established, the influence of eddy of the layered structure is considered, and by calculating and analyzing the induced current and the magnetic field distribution in the tissues, the induced current and the magnetic field distribution of different layers of the brain can be more accurately known when the brain is subjected to magnetic stimulation, so that positioning guidance of current acting points is provided for clinic, and the clinical use effect of the transcranial magnetic stimulator is improved.
Year: 2019
Country: CN
Doc No: 110433396