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.2024.2403026
MPI field-free line scanning with dual electromagnet current adjustment
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Copyright (c) 2024 Masaomi Washino, Kota Nomura, Tetsuya Matsuda, Kazuki Yamauchi, Satoshi Seino, Takashi Nakagawa, Toshihiko Kiwa
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Magnetic particle imaging (MPI) is a technology that directly detects the nonlinear response of magnetic nanoparticles (MNPs). It has garnered significant attention in medical imaging. MNPs are saturated except near a specific point known as the field-free region, established by applying a static magnetic field [1]. Recent research has underscored using the field-free line (FFL) method for scanning the field-of-view to enhance MPI sensitivity [2-4]. This paper reports on a performance evaluation of an MPI system employing two pairs of electromagnets capable of scanning the FFL by finely adjusting the distribution of current flowing through each electromagnet.
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References
[2] J. Weizenecker, B. Gleich, et al., Magnetic particle imaging using a field free line, J. Phys., D41:105009, 2009.
[3] K. Murase, S. Hiratsuka, R. Song, and Y. Takeuchi, Development of a system for magnetic particle imaging using neodymium magnets and gradiometer, Jpn J. Appl. Phys., vol. 53, pp. 067001, 2014.
[4] T. Knopp, M. Erbe, S. Biederer, T. F. Sattel, and T. M. Buzug, Efficient generation of a magnetic field-free line, Med. Phys., vol. 37, pp. 3538, 2010.
[5] K. Nomura, M. Washino, T. Matsuda, S. Tonooka, S. Seino, H. Yoshida, K. Nishigaki, T. Nakagawa, and T. Kiwa, Magnetic-Particle-Discrimination Method Using Difference of Relaxation Time for Magnetic Particle Imaging, IEEE Magn. Lett., vol. 14, pp. 8100105, 2023.
[6] E. E. Mason, C. Z. Cooley, S. F. Cauley, M. A. Griswold, S. M. Conolly, and L. L. Wald, Design analysis of an MPI human functional brain scanner, Int. J. Magn. Part. Imaging, vol. 3, 2017.