Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026
· Cape Town, South Africa
466-04-003
ISMRM Abstract
Dynamic higher-order shims for a unipolar head gradient
Primary:
Physics & Engineering - Shims
Secondary:
Physics & Engineering - Gradients
466-04-003 · Magnets and Shims
· Tuesday, 12 May, 2:35 PM–3:30 PM · Digital Posters Row G
Keywords:7THigher-order shimmingDynamic shimmingUnipolarHigh-performance head gradient
Accepted
Runpu Hao 1, Johan Overweg2, Markus Weiger1, Franciszek Hennel1, Roger Luechinger1, Wout Schuth3, Martino Borgo3, Klaas P Prüssmann1
1Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland
2Uelzen, Germany
3Futura Composites BV, Heerhugowaard, Netherlands
Presenting Author: Runpu Hao
Synopsis
Motivation:
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1. Weiger M, Overweg J, Rosler MB, et al. A high-performance gradient insert for rapid and short-T2 imaging at full duty cycle. Magn Reson Med. 2018;79:3256-3266. doi:https://doi.org/10.1002/mrm.26954 [doi]
2. Foo TKF, Tan ET, Vermilyea ME, et al. Highly efficient head-only magnetic field insert gradient coil for achieving simultaneous high gradient amplitude and slew rate at 3.0T (MAGNUS) for brain microstructure imaging. Magn Reson Med. 2020;83:2356-2369. doi:https://doi.org/10.1002/mrm.28087 [doi]
3. Huang SY, Witzel T, Keil B, et al. Connectome 2.0: Developing the next-generation ultra-high gradient strength human MRI scanner for bridging studies of the micro-, meso- and macro-connectome. Neuroimage. 2021;243:118530. doi:https://doi.org/10.1016/j.neuroimage.2021.118530 [doi]
4. Davids M, Dietz P, Ruyters G, et al. Peripheral nerve stimulation informed design of a high-performance asymmetric head gradient coil. Magn Reson Med. 2023;90:784-801. doi:https://doi.org/10.1002/mrm.29668 [doi]
5. Feinberg DA, Beckett AJS, Vu AT, et al. Next-generation MRI scanner designed for ultra-high-resolution human brain imaging at 7 Tesla. Nat Methods. 2023;20:2048-2057. doi:https://doi.org/10.1038/s41592-023-02068-7 [doi]
6. Weiger M, Overweg J, Hennel F, et al. A unipolar head gradient for high-field MRI without encoding ambiguity. Magn Reson Med. 2025. doi:https://doi.org/10.1002/mrm.70098 [doi]
7. Vaughan T, DelaBarre L, Snyder C, et al. 9.4T human MRI: preliminary results. Magn Reson Med. 2006;56:1274-1282. doi:https://doi.org/10.1002/mrm.21073 [doi]
8. He X, Erturk MA, Grant A, et al. First in-vivo human imaging at 10.5T: Imaging the body at 447 MHz. Magn Reson Med. 2020;84:289-303. doi:https://doi.org/10.1002/mrm.28131 [doi]
9. Boulant N, Mauconduit F, Gras V, et al. In vivo imaging of the human brain with the Iseult 11.7-T MRI scanner. Nat Methods. 2024;21:2013-2016. doi:https://doi.org/10.1038/s41592-024-02472-7 [doi]
10. Boulant N, Le Ster C, Amadon A, et al. The possible influence of third-order shim coils on gradient-magnet interactions: an inter-field and inter-site study. MAGMA. 2024;37:169-183. doi:https://doi.org/10.1007/s10334-023-01138-3 [doi]
11. Blamire AM, Rothman DL, Nixon T. Dynamic shim updating: a new approach towards optimized whole brain shimming. Magn Reson Med. 1996;36:159-165. doi:https://doi.org/10.1002/mrm.1910360125 [doi]
12. de Graaf RA, Brown PB, McIntyre S, Rothman DL, Nixon TW. Dynamic shim updating (DSU) for multislice signal acquisition. Magn Reson Med. 2003;49:409-416. doi:https://doi.org/10.1002/mrm.10404 [doi]
13. Juchem C, Nixon TW, Diduch P, Rothman DL, Starewicz P, de Graaf RA. Dynamic Shimming of the Human Brain at 7T. Concepts Magn Reson Part B Magn Reson Eng. 2010;37B:116-128. doi:https://doi.org/10.1002/cmr.b.20169 [doi]
14. Vannesjo SJ, Duerst Y, Vionnet L, et al. Gradient and shim pre-emphasis by inversion of a linear time-invariant system model. Magn Reson Med. 2017;78:1607-1622. doi:https://doi.org/10.1002/mrm.26531 [doi]
15. Stockmann JP, Wald LL. In vivo B0 field shimming methods for MRI at 7T. Neuroimage. 2018;168:71-87. doi:https://doi.org/10.1016/j.neuroimage.2017.06.013 [doi]
16. Duerst Y, Wilm BJ, Dietrich BE, et al. Real-time feedback for spatiotemporal field stabilization in MR systems. Magn Reson Med. 2015;73:884-893. doi:https://doi.org/10.1002/mrm.25167 [doi]
17. Wilm BJ, Barmet C, Pavan M, Pruessmann KP. Higher order reconstruction for MRI in the presence of spatiotemporal field perturbations. Magn Reson Med. 2011;65:1690-1701. doi:https://doi.org/10.1002/mrm.22767 [doi]
18. Dietrich BE, Brunner DO, Wilm BJ, et al. A field camera for MR sequence monitoring and system analysis. Magn Reson Med. 2016;75:1831-1840. doi:https://doi.org/10.1002/mrm.25770 [doi]
19. Vannesjo SJ, Dietrich BE, Pavan M, et al. Field camera measurements of gradient and shim impulse responses using frequency sweeps. Magn Reson Med. 2014;72:570-583. doi:https://doi.org/10.1002/mrm.24934 [doi]
20. Hennel F, Wilm B, Roesler MB, Weiger M, Dietrich B, Pruessmann KP. Echo-planar imaging of the human head with 100 mT/m gradients and high-order modeling of eddy current fields. Magn Reson Med. 2020;84:751-761. doi:https://doi.org/10.1002/mrm.28168 [doi]
21. Riedel M, Ulrich T, Pruessmann KP. Run-time motion and first-order shim control by expanded servo navigation. Magn Reson Med. 2025;93:166-182. doi:https://doi.org/10.1002/mrm.30262 [doi]