International Journal on Magnetic Particle Imaging IJMPI
Vol. 10 No. 1 Suppl 1 (2024): Int J Mag Part Imag
https://doi.org/10.18416/IJMPI.2024.2403042
A study on different Halbach arrays of magnets in relation to magnetic field gradients in a handheld MPI system
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Copyright (c) 2024 yang jing, Bo Zhang, Zhenchao Tang, Hui Hui, Jie Tian
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Handheld MPI devices have promising clinical application prospects due to their portability. However, there is a lack of detailed analysis of Halbach magnet arrays, which are critical for generating field-free regions in handheld MPI system imaging. Therefore, investigating the relationship between the Halbach array configuration and the resulting magnetic field is necessary. In this study, we modify the magnet rotation angle, magnetic field rotation angle, magnet thickness, and magnet outer radius of cylindrical magnets to vary the Halbach array configuration, and further explore and confirm their relationship with the magnetic field gradients. In the future, these results can be utilized to adjust the configuration of the Halbach magnet array to better meet clinical requirements and further promote the application of handheld MPI.
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References
[2] Talebloo N, Gudi M, Robertson N, et al. Magnetic particle imaging: current applications in biomedical research[J]. Journal of Magnetic Resonance Imaging, 2020, 51(6): 1659-1668.
[3] Mason E E, Mattingly E, Herb K, et al. Concept for using magnetic particle imaging for intraoperative margin analysis in breast-conserving surgery[J]. Scientific Reports, 2021, 11(1): 13456.
[4] Li D, Wang S, Guo Y, et al. Modelling and Experimental Study of Halbach Array Magnetic Coupler[J]. KSCE Journal of Civil Engineering, 2023, 27(1): 261-269.
[5] Choi S H, Le T A, Son B, et al. A portable single-sided magnetic particle imaging concept using amplitude modulation for breast conserving sugery[J]. International Journal on Magnetic Particle Imaging IJMPI, 2022, 8(1 Suppl 1).
[6] Wang Q, Zhang Z, Xu C, et al. Single-sided magnetic particle imaging devices using ferrite core to improve penetration depth[J]. International Journal on Magnetic Particle Imaging IJMPI, 2023, 9(1 Suppl 1).