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.2024.2403002
Power-optimized drive field coils for human brain magnetic particle imaging
Main Article Content
Copyright (c) 2024 Egor Kretov, Jan-Philipp Scheel, Liana Mirzojan, Florian Sevecke, Matthias Graeser
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
The implementation of human-scale magnetic particle imaging is significantly restricted by the nonlinear growth in power with the size of the field-generating coils. To address this issue, we developed anatomically optimized shapes with a reduced internal volume for the head drive field system using a wide range of anatomical data as a reference. On the base of designed complex bodies, we synthesized windings for two orthogonal coils with the help of the stream functions approach. The resulting coil set was compared to the state-of-the-art solenoid/saddle coil pair and showed a reduction in power consumption by a factor of 1.58 in numerical simulations. We also built a prototype of the designed coils using additive manufacturing and used it to receive the first signals from the nanoparticles.
Article Details
References
nonlinear response of magnetic particles. Nature, 435(7046):1214–
1217, 2005, doi:10.1038/nature03808.
[2] J. Rahmer, C. Stehning, and B. Gleich. Remote magnetic actuation using a clinical scale system. PLOS ONE, 13(3):1–19, 2018,
doi:10.1371/journal.pone.0193546.
[3] P. Vogel, M. A. Rückert, C. Greiner, J. Günther, T. Reichl, T. Kampf,
T. A. Bley, V. C. Behr, and S. Herz. Impi: Portable human-sized magnetic particle imaging scanner for real-time endovascular interventions. Scientific Reports, 13(1):10472, 2023, doi:10.1038/s41598-
023-37351-2.
[4] E. Mason, C. Cooley, S. Cauley, M. Griswold, S. Conolly, and L.
Wald. Design analysis of an mpi human functional brain scanner. International journal on magnetic particle imaging, 3, 2017,
doi:10.18416/ijmpi.2017.1703008.
[5] M. Graeser, F. Thieben, P. Szwargulski, F. Werner, N. Gdaniec, M.
Boberg, F. Griese, M. Möddel, P. Ludewig, D. van de Ven, O. M. Weber, O. Woywode, B. Gleich, and T. Knopp. Human-sized magnetic
particle imaging for brain applications. Nature Communications,
10(1):1936, 2019, doi:10.1038/s41467-019-09704-x.
[6] V. Ahlstrom and K. Longo. Human factors design standard (HFSTD-001). Atlantic City International Airport, 2003.
[7] R. Ball, C. Shu, P. Xi, M. Rioux, Y. Luximon, and J. Molenbroek. A comparison between chinese and caucasian
head shapes. Applied Ergonomics, 41(6):832–839, 2010,
Special Section: Selection of papers from IEA 2009.
doi:https://doi.org/10.1016/j.apergo.2010.02.002.
[8] Z. Zhuang and B. Bradtmiller. Head-and-face anthropometric survey of u.s. respirator users. Journal of occupational and environmental hygiene, 2:567–76, 2005, doi:10.1080/15459620500324727.
[9] A. J. Mäkinen, R. Zetter, J. Iivanainen, K. C. J. Zevenhoven, L.
Parkkonen, and R. J. Ilmoniemi. Magnetic-field modeling with
surface currents. Part I. Physical and computational principles
of bfieldtools. Journal of Applied Physics, 128(6):063906, 2020,
doi:10.1063/5.0016090.
[10] R. Zetter, A. J. Mäkinen, J. Iivanainen, K. C. J. Zevenhoven, R. J. Ilmoniemi, and L. Parkkonen. Magnetic field modeling with surface
currents. Part II. Implementation and usage of bfieldtools. Journal
of Applied Physics, 128(6):063905, 2020, doi:10.1063/5.0016087.