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.2026.2603016

Proceedings Articles, ID 986

Theoretical Verification of Coil-Array-Based 3D Magnetic Particle Imaging Technology

Main Article Content

Ning He (Xidian University), Jiawei Hu (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Yuzhou Wang (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Yao Tong (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Dong Liang (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Dinghong Duan (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Kai Liu (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Yihan Wang (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China), Shouping Zhu (School of Life Science and Technology, Xidian University Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xi’an, Shaanxi 710126, China)

Copyright (c) 2026 Ning He, Jiawei Hu, Yuzhou Wang, Yao Tong, Dong Liang, Dinghong Duan, Kai Liu, Yihan Wang, Shouping Zhu

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

Abstract

To enable real-time three-dimensional (3D) magnetic particle imaging (MPI) based on the field-free line (FFL), we propose a novel 3D MPI strategy that employs tomographic encoding through the spatially specific sensitivities of a receive coil array. Based on the spatially specific sensitivity encoding (SSSE) principle of the multi-channel receive coil array, 3D reconstruction can be achieved with only a 2D translational scan of the magnetic FFL. This approach reduces the scanning dimensionality by one compared to conventional parallel-beam tomography, offering a new paradigm for rapid, real-time 3D imaging. During reconstruction, multi-channel projection images transform the 3D inverse problem into a series of 1D inverse problems, significantly reducing computational complexity. Finally, the feasibility of sensitivity?based spatial encoding was validated in simulation experiments, demonstrating its broad application prospects and innovative value for 3D MPI imaging.

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