Induced electrical fields on a human body by various magnetic field topologies in the light of peripheral nerve stimulation thresholds

Induced electrical fields inside the human body trigger peripheral nerve stimulation (PNS), if they exceed a frequency dependent threshold [1]. For magnetic particle imaging (MPI), studies using magnetic fields which are almost homogeneous in one direction have been carried out [2-5]. In order to extend those results to other magnetic fields and coil topologies, notably for field free line and single sided scanners, and to allow the optimization of coils to limit the triggering of nerves, a boundary element method model of the induced electrical field has been implemented in Matlab.