Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
568-02-013 ISMRM Abstract

Influence of Higher-Order Shim Coil Impurity on achievable Magnetic Field Homogeneity in High field Imaging and Spectroscopic

Primary: Physics & Engineering - High-Field MRI
Secondary: Physics & Engineering - Shims
568-02-013 · System Imperfections and Field Monitoring · Wednesday, 13 May, 9:15 AM–10:10 AM · Digital Posters Row I
Keywords: B0 shimming Ultra high field MRI 7T MRI 1H-MRSI B0 shim hardware
Accepted
Mahrshi Jani 1, Shengyue Su1, Armin M NAGEL2,3,4,5,6,7,8,9,10,11,12,13,14, Anke Henning1
1University of Texas Southwestern Medical Center, Dallas, United States of America
2Uniklinikum Erlangen, Erlangen, Germany
3German Cancer Research Center (DKFZ), Heidelberg, Germany
4Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
5Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
6Division of Medical Physics in Radiology, German Cancer Research Center, Heidelberg, Germany
7Institute of Radiology, Uniklinikum Erlangen, Erlangen, Germany
8Division of Medical Physics, German Cancer Research Center (DKFZ), Heidelberg, Germany
9Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
10Institute of Radiology, University Hospital Erlangen (UKER), Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany
11Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
12Institute of Radiology, University Hospital Erlangen (UKER), Erlangen, Germany
13Division of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
14Division of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
Presenting Author: Mahrshi Jani

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References

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2. Hetherington HP, Chu W-J, Gonen O, Pan JW. Robust fully automated shimming of the human brain for high-field 1H spectroscopic imaging. Magn Reson Med 2006; 56:26–33.
3. Juchem C, Nixon TW, McIntyre S, Boer VO, Rothman DL, de Graaf RA. Dynamic multi-coil shimming of the human brain at 7 Tesla. J Magn Reson 2011; 212: 280–288.
4. Boulant N, Quettier L et al. Commissioning of the Iseult CEA 11.7 T whole-body MRI: current status, gradient-magnet interaction tests and first imaging experience. MAGMA 2023 Apr;36(2):175-189. doi:10.1007/s10334-023-01063-5. [doi]
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6. Paul Chang, Sahar Nassirpour, Anke Henning. Modeling Real Shim Fields for Very High Degree (and order) B0 Shimming of Human Brain at 9.4 T. Magnetic Resonance in Medicine 79:529–540 (2018).
7. Ariane Fillmer, Signe Johanna Vannesjo, Matteo Pavan, Milan Scheidegger, Klaas Paul Pruessmann, Anke Henning. Fast iterative pre-emphasis calibration method enabling third-order dynamic shim updated fMRI. Magnetic Resonance in Medicine Volume 75, Issue 3 p. 1119-1131.
8. Boulant N, Le Ster C, Amadon A, Aubert G, Beckett A, Belorgey J, Bonnelye C, Bosch D, Brunner DO, Dilasser G, Dubois O, Ehses P, Feinberg D, Feizollah S, Gras V, Gross S, Guihard Q, Lannou H, Le Bihan D, Mauconduit F, Molinié F, Nunio F, Pruessmann K, Quettier L, Scheffler K, Stöcker T, Tardif C, Ugurbil K, Vignaud A, Vu A, Wu X. The possible influence of third-order shim coils on gradient-magnet interactions: an inter-field and inter-site study. MAGMA. 2024 Apr;37(2):169-183. doi: 10.1007/s10334-023-01138-3. Epub 2024 Jan 10. PMID: 38197908; PMCID: PMC10995016. [doi] [pmid]
9. Wright AM, Murali-Manohar S, Henning A. Quantitative T1-relaxation corrected metabolite mapping of 12 metabolites in the human brain at 9.4 T. Neuroimage. 2022 Nov;263:119574. doi: 10.1016/j.neuroimage.2022.119574. Epub 2022 Sep 1. PMID: 36058442. [doi] [pmid]
10. Chan KL, Henning A. MultiNet CAIPIRINHA: accelerated H MRSI with 1-step neural network reconstruction based on augmented MRSI training data. Proceedings of the 30th annual scientific meeting of ISMRM, May 7th – 12th 2022,London, UK.
11. Ziegs, T, Wright, AM, Henning, A. Test–retest reproducibility of human brain multi-slice 1H FID-MRSI data at 9.4T after optimization of lipid regularization, macromolecular model, and spline baseline stiffness. Magn Reson Med. 2023; 89: 11-28. doi:10.1002/mrm.29423. [doi]

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http://echo.ismrm.org/p/ISMRM2026/568-02-013