Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
465-06-008 ISMRM Abstract

Optimized Slice-specific Shimming of Whole-body DWI in High-BMI Subjects

Primary: Body - Whole Body Imaging
Secondary: Diffusion - Diffusion Acquisition
465-06-008 · Diffusion Acquisition · Tuesday, 12 May, 4:55 PM–5:50 PM · Digital Posters Row F
Keywords: Active Shimming Whole-Body MRI Fat suppression Dynamic shimming Diffusion-weighted imaging (DWI)
Accepted
Aidan D Tollefson 1,2, Patricia Lan3, Arnaud Guidon4, Gaohong Wu5, Julius F Heidenreich1,6, Ali Pirasteh1,2, Diego Hernando1,2,7,8
1Department of Radiology, University of Wisconsin - Madison, Madison, United States of America
2Department of Medical Physics, University of Wisconsin - Madison, Madison, United States of America
3MR Clinical Solutions & Research Collaborations, GE HealthCare, Menlo Park, United States of America
4MR Clinical Solutions & Research Collaborations, GE HealthCare, San Ramon, United States of America
5GE HealthCare, Waukesha, United States of America
6Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, Germany
7Department of Biomedical Engineering, University of Wisconsin - Madison, Madison, United States of America
8Department of Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, United States of America
Presenting Author: Aidan D Tollefson

Synopsis

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References

1. Messina C, Bignone R, Bruno A, et al. Diffusion-Weighted Imaging in Oncology: An Update. Cancers. 2020;12(6):1493. doi:10.3390/cancers12061493 [doi]
2. Morrell G, Spielman D. Dynamic shimming for multi-slice magnetic resonance imaging. Magn Reson Med. 1997;38(3):477–483. doi:10.1002/mrm.1910380316 [doi]
3. McElroy S, Winfield JM, Westerland O, et al. Integrated slice-specific dynamic shimming for whole-body diffusion-weighted MR imaging at 1.5 T. Magn Reson Mater Phy. 2021;34(4):513–521. doi:10.1007/s10334-020-00898-6 [doi]
4. Tollefson A, Wu G, Lan P, Guidon A, Van Der Heijden RA, Tamada D, Pirasteh A, Hernando D. Slice-by-slice Dynamic Shimming Based on a Chemical Shift-Encoded Acquisition to Improve Fat Suppression in DWI. Proc. Intl. Soc. Mag. Reson. Med. 33 (2023): Abstract 3409.
5. Roberts NT, Hinshaw LA, Colgan TJ, Ii T, Hernando D, Reeder SB. B₀ and B₁ inhomogeneities in the liver at 1.5 T and 3.0 T. Magn Reson Med. 2021;85(4):2212–2220. doi:10.1002/mrm.28549 [doi]
6. Tollefson A, Robers N, Pirasteh A, Hernando D. B₀ Inhomogeneity in the Abdominal Subcutaneous Fat at 3T. Proc. Intl. Soc. Mag. Reson. Med. 32 (2022): Abstract 0932.
7. Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics. 1977;33(1):159–174. doi:10.2307/2529310 [doi]
8. Xie VB, Lyu M, Liu Y, Feng Y, Guo H, Wu EX. Fat residue removal by SENSE in EPI and DW-EPI. Proc. Intl. Soc. Mag. Reson. Med. 24 (2016): 3279.
9. Tollefson A, Fullerton G, Lan P, Guidon A, Wu G, Pirasteh A, Hernando D. Diffusion MRI of the liver with Optimized Slice-specific, Liver-specific Shimming. Proc. Intl. Soc. Mag. Reson. Med. 34 (2025): Abstract 9201.

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http://echo.ismrm.org/p/ISMRM2026/465-06-008