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A Simulation Study on the Difference of PNS with Magnetic Fields and Electric Fields in an Arm Model

Yihe Hua¹, Desmond TB Yeo¹, and Thomas K Foo¹
¹GE Global Research, Niskayuna, NY, United States

For ES by electrodes, high field intensity distributed in local places that surround the electrodes due to the low electric conductivity of the skin. For the MS stimulation, the electric field distribution is more even. The chronaxie values with MRG model are at the same order for ES and MS cases.

Fig.1 Different Views of Electric Stimulation(Case1 Red, Case2 Green) and Magnetic Stimulation(Blue). The electrodes in Case2 is 1.3cm more distal than Case 1 and the distal side electrode is closer to the nerve below it than Case 1)

PNS response by (a)ES and (b)MS. In(b), refence magnetic field=0.0825mT/A is at 1.2cm above the center of the coil