International Journal on Magnetic Particle Imaging IJMPI
Vol. 11 No. 1 Suppl 1 (2025): Int J Mag Part Imag
https://doi.org/10.18416/IJMPI.2025.2503025

Proceedings Articles

Spatial encoding with receive coils in MPI

Main Article Content

Egor Kretov (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE), Jan-Philipp Scheel (1) Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE, Lübeck, Germany 2) Institute of Medical Engineering, University of Lübeck, Lübeck, Germany), Liana Mirzojan (1) Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE, Lübeck, Germany 2) Institute of Medical Engineering, University of Lübeck, Lübeck, Germany), Florian Sevecke (1) Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE, Lübeck, Germany 2) Institute of Medical Engineering, University of Lübeck, Lübeck, Germany), Matthias Graeser (1) Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE, Lübeck, Germany 2) Chair of Measurement Technology, University of Rostock, Rostock, Germany)

Copyright (c) 2025 Egor Kretov, Jan-Philipp Scheel, Liana Mirzojan, Florian Sevecke, Matthias Graeser

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

Abstract

MPI techniques traditionally use gradient magnetic fields for spatial encoding. Despite their proven efficiency, these methods are power-intensive and technically challenging to implement on a human scale. In this work, we explore the potential for spatial encoding of superparamagnetic nanoparticle distributions using only a drive field and an array of receiving coils with unique spatial sensitivity profiles. We demonstrate the feasibility of this concept using a prototype 1D imaging system extended to 2D by mechanically moving the sample. The proposed approach permits high-speed gradient-free data acquisition for rapid imaging but also has some limitations in terms of penetration depth.

Article Details

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