International Journal on Magnetic Particle Imaging IJMPI
Vol. 12 No. 1 Suppl 1 (2026): Int J Mag Part Imag
https://doi.org/10.18416/IJMPI.2026.2603006

Proceedings Articles, ID 1016

Spherical harmonic-based receive coil array for a head MPI system

Main Article Content

Onurcan Topcu (Fraunhofer IMTE), Egor Kretov  (Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Justin Ackers  (Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Patricia Römer (Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Niklas Hackelberg (1) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany; 2)Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany), Haozhe Wang (1) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany; 2) Department of Electrical and Electronic Engineering, Kyushu University, Fukuoka, Japan), Florian Thieben (1) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany; 2)Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany), Takashi Yoshida (Department of Electrical and Electronic Engineering, Kyushu University, Fukuoka, Japan), Mandy Ahlborg (Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany), Tobias Knopp (1) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany; 2) Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany; 3) Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany), Matthias Graeser (1) Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering IMTE, Lübeck, Germany; 2) Chair of Metrology, University of Rostock, Rostock, Germany)

Copyright (c) 2026 Onurcan Topcu, Egor Kretov , Justin Ackers , Patricia Römer, Niklas Hackelberg, Haozhe Wang, Florian Thieben, Takashi Yoshida, Mandy Ahlborg, Tobias Knopp, Matthias Graeser

Creative Commons License

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

Abstract

A gradiometric receive coil is practically the modern standard in MPI. Although such a structure is one of the reliable and most effective ways of isolating the receive circuits from the influence of drive fields, it is challenging to implement it for the spatial sensitivity directions orthogonal to the cylinder axis of an MPI scanner. In this work, we demonstrate a concept of matrix coils based on spherical harmonic spatial sensitivity profiles. Our approach permits us to expand the number of independent receive channels in our head-sized MPI system to seven (and potentially more), while preserving important gradiometric characteristics of each channel.

Article Details

References

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