International Journal on Magnetic Particle Imaging IJMPI
Vol. 12 No. 1 Suppl 1 (2026): Int J Mag Part Imag

Short Abstracts, ID 1020

Human Head Exposure to Multidimensional Magnetic Fields in MPI: A Simulation-Based Safety Study

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Jonas Faltinath (1) Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; 2) Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany), Fynn Foerger (1) Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; 2) Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany; 3) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Florian Thieben (1) Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; 2) Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany; 3) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Tobias Knopp (1) Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; 2) Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany; 3) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany)

Copyright (c) 2026 Jonas Faltinath, Fynn Foerger, Florian Thieben, Tobias Knopp

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The translation of magnetic particle imaging (MPI) scanners into a clinical stage requires a detailed risk and safety assessment. In order to perform human experiments, the influence of the magnetic fields in use onto the human body have to be evaluated, in particular with view on peripheral nerve stimulation (PNS). While multidimensional excitation studies have been conducted with human abdomen, PNS studies of the human head were limited to a single excitation axis up to this date. In this work, we simulate the expected induced current density of our two-axis MPI scanner drive fields when applied to a detailed anatomical human head model. We compare the acquired results with the defined basic restrictions of the International Commission on Non-Ionizing Radiation Protection and discuss the consequences.

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