Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
466-04-002 ISMRM Abstract

Thermal Ferromagnetic Shims for Compact Magnets

Primary: Physics & Engineering - Shims
Secondary: Physics & Engineering - Low-Field MRI
466-04-002 · Magnets and Shims · Tuesday, 12 May, 2:35 PM–3:30 PM · Digital Posters Row G
Keywords: Low-Field MRI Shims Permanent Magnets Array
Accepted
Hans T Gaensbauer 1,2,3, David Bono4, Elfar Adalsteinsson5, Jongyoon Han1,2,3,6
1Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, United States of America
2CAMP IRG, Singapore-MIT Alliance for Research and Technology (SMART), Singapore, Singapore
3AMR IRG, Singapore-MIT Alliance for Research and Technology (SMART), Singapore, Singapore
4Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, United States of America
5Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, United States of America
6Biological Engineering, Massachusetts Institute of Technology, Cambridge, United States of America
Presenting Author: Hans T Gaensbauer

Synopsis

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References

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2. Yang, S.; Kim, H.; Ghim, M.-O.; Lee, B.-U.; Kim, D.-H. Local in Vivo Shimming Using Adaptive Passive Shim Positioning. Magn. Reson. Imaging 2011, 29 (3), 401–407. https://doi.org/10.1016/j.mri.2010.10.004. [doi]
3. McDowell, A.; Conradi, M. Thin High-Order Shims for Small Dipole NMR Magnets. J. Magn. Reson. San Diego Calif 1997 2017, 281, 7–16. https://doi.org/10.1016/j.jmr.2017.04.013. [doi]
4. Überrück, T.; Blümich, B. Variable Magnet Arrays to Passively Shim Compact Permanent-Yoke Magnets. J. Magn. Reson. 2019, 298, 77–84. https://doi.org/10.1016/j.jmr.2018.11.011. [doi]
5. McDowell, A. F. Adjustable Passive Shims for Dipole NMR Magnets. J. Magn. Reson. San Diego Calif 1997 2018, 296, 143–151. https://doi.org/10.1016/j.jmr.2018.09.008. [doi]
6. Koch, K. M.; Brown, P. B.; Rothman, D. L.; de Graaf, R. A. Sample-Specific Diamagnetic and Paramagnetic Passive Shimming. J. Magn. Reson. 2006, 182 (1), 66–74. https://doi.org/10.1016/j.jmr.2006.06.013. [doi]
7. Laird MCP Ferrite Material Property. https://www.laird.com/sites/default/files/laird-mcp-ferrite-material-property.pdf (accessed 2025-10-24).
8. 74279224101 Datasheet WE-MPSB EMI Multilayer Power Suppression Bead. https://www.we-online.com/components/products/datasheet/74279224101.pdf (accessed 2025-10-24).
9. HI2220R151R-10 Datasheet. https://www.laird.com/sites/default/files/hi2220r151r-10-datasheet.pdf (accessed 2025-10-24).
10. Wachowicz, K. Evaluation of Active and Passive Shimming in Magnetic Resonance Imaging. Res. Rep. Nucl. Med. 2014, 4, 1–12. https://doi.org/10.2147/RRNM.S46526. [doi]
11. Terada, Y.; Kono, S.; Ishizawa, K.; Inamura, S.; Uchiumi, T.; Tamada, D.; Kose, K. Magnetic Field Shimming of a Permanent Magnet Using a Combination of Pieces of Permanent Magnets and a Single-Channel Shim Coil for Skeletal Age Assessment of Children. J. Magn. Reson. 2013, 230, 125–133. https://doi.org/10.1016/j.jmr.2013.02.005. [doi]

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http://echo.ismrm.org/p/ISMRM2026/466-04-002