466-04-006 ISMRM Abstract

Shimming of breathing-induced B0 changes in the spinal cord with an integrated RF/shim coil array and ultrasound-based sensor

Primary: Physics & Engineering - Hybrid & Novel Systems Technology

Secondary: Physics & Engineering - Shims

466-04-006 · Magnets and Shims · Tuesday, 12 May, 2:35 PM–3:30 PM · Digital Posters Row G

Keywords: Shims Spinal Cord B0 shimming Ultrasound sensors IPRES

Accepted

Evangelina Y Wong^1,2, Jayant Dubey³, Gabriel M Clinger^1,2, Pear Sukarom^1,2, Dean Darnell ^1,2, Bruno Madore^3,4, Jason Stockmann⁵, Allen W Song^1,2, Trong-Kha Truong^1,2

¹Brain Imaging and Analysis Center, Duke University, Durham, United States of America

²Medical Physics Graduate Program, Duke University, Durham, United States of America

³Brigham and Women's Hospital, Boston, United States of America

⁴Harvard Medical School, Boston, United States of America

⁵Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States of America

Presenting Author: Dean Darnell

Synopsis

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References

1. Verma T, Cohen-Adad J. Effect of respiration on the B0 field in the human spinal cord at 3T. Magn Reson Med. 2014 Dec;72(6):1629–36. doi:10.1002/mrm.25075 [doi]

2. Topfer R, Foias A, Stikov N, Cohen-Adad J. Real-time correction of respiration-induced distortions in the human spinal cord using a 24-channel shim array. Magn Reson Med. 2018 Sep;80(3):935–46. doi:10.1002/mrm.27089 [doi]

3. Topfer R, Rios NL, Foias A, Arango N, Wald L, Stockmann JP, et al. Real-time shimming in the cervical spinal cord using an 8-channel AC/DC array and a capacitive respiratory sensor. Proc ISMRM. 2019;27:925.

4. Wong EY, Darnell D, Stockmann JP, Robb F, Song AW, Truong TK. Real-time shimming of respiration-induced B₀ fluctuations in the spinal cord with an integrated RF/shim iPRES(3) coil array. Proc ISMRM. 2025;32:3475.

5. Madore B, Preiswerk F, Bredfeldt JS, Zong S, Cheng CC. Ultrasound-based sensors to monitor physiological motion. Med Phys. 2021 Jul;48(7):3614–22. doi:10.1002/mp.14949 [doi]

6. Madore B, Belsley G, Cheng CC, Preiswerk F, Kijewski MF, Wu PH, et al. Ultrasound-based sensors for respiratory motion assessment in multimodality PET imaging. Phys Med Biol. 2022 Jan;67(2):02NT01. doi:10.1088/1361-6560/ac4213 [doi]

7. Darnell D, Truong TK, Song AW. Integrated parallel reception, excitation, and shimming (iPRES) with multiple shim loops per radio-frequency coil element for improved B0 shimming. Magn Reson Med. 2017 May;77(5):2077–86. doi:10.1002/mrm.26267 [doi]

8. Arango N, Stockmann JP, Witzel T, Wald L, White J. Open-source, low-cost, flexible, current feedback-controlled driver circuit for local B₀ shim coils and other applications. In: Proc ISMRM. 2016;24:1157.

9. Stockmann JP, Arango NS, Witzel T, Mareyam A, Sappo C, Zhou J, et al. A 31-channel integrated “AC/DC” B0 shim and RF receive array coil for improved 7 Tesla MRI. Magn Reson Med. 2022 Feb;87(2):1074–92. doi:10.1002/mrm.29022 [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/466-04-006