Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
568-01-010 ISMRM Abstract

Safety Validation of a Magnetic Resonance Hydrophone

Primary: Physics & Engineering - Hybrid & Novel Systems Technology
Secondary: Acquisition & Reconstruction - Signal Modeling
568-01-010 · Unconventional Physics and Engineering · Wednesday, 13 May, 8:20 AM–9:15 AM · Digital Posters Row I
Keywords: Focused Ultrasound MRI Validation study Non-invasive Neuromodulation Simulation
Accepted
Christian Hales 1, Davi Cavinatto2, Preston Manwaring1, Taylor Webb3, Steven P Allen1
1Electrical and Computer Engineering, Brigham Young University, Provo, United States of America
2Biomedical Engineering, University of Utah, Salt Lake City, United States of America
3Department of Radiology & Imaging Sciences, University of Utah, Salt Lake City, United States of America
Presenting Author: Christian Hales

Synopsis

Motivation:
Goals:
Approach:
Results:
Full abstract & presentation

The full text, figures, and any recorded presentation for this abstract are not shown here. Log in if you are a member or registered attendee with access.

Full abstracts, figures, and presentations for Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition are available to registered attendees. This content becomes freely available to the public roughly two years after the meeting.

To request or purchase access, contact the ISMRM Central Office at info@ismrm.org.

Log in

References

1. National Institute of Mental Health. (2024, September). Mental illness. https://www.nimh.nih.gov/health/statistics/mental-illness
2. Pellow, C., Pichardo, S., & Pike, G. B. (2024). A systematic review of preclinical and clinical transcranial ultrasound neuromodulation and opportunities for functional connectomics. Brain Stimulation, 17(4), 734–751. doi:10.1016/j.brs.2024.06.005 [doi]
3. Passe-Carlus, P.-E., Cavinatto, D., Thyberg, N., Reed, C., Webb, T. D., & Allen, S. P. (2025). A human-compatible gradient coil for visualizing ultrasound propagation. Magnetic Resonance Imaging, 122, 110447. doi:10.1016/j.mri.2025.110447 [doi]
4. National Electrical Manufacturers Association. (2016). NEMA MS 8-2016: Characterization of the Specific Absorption Rate (SAR) for magnetic resonance imaging systems (Standard MS 8-2016). https://mriquestions.com/uploads/3/4/5/7/34572113/nema_sar_ms_8-2016_watermarked.pdf
5. Center for Magnetic Resonance Research. (2010). IEC-SAR Guidelines. University of Minnesota. https://www.cmrr.umn.edu/policies.new/nc-cms/content/upload/CMRR_IEC-SAR_Guidelines.pdf
6. Farrer, A. I., Odéen, H., de Bever, J., Coats, B., Parker, D. L., Payne, A., & Christensen, D. A. (2015). Characterization and evaluation of tissue-mimicking gelatin phantoms for use with MRgFUS. Journal of Therapeutic Ultrasound, 3, 9. doi:10.1186/s40349-015-0030-y [doi]
7. International Electrotechnical Commission & Institute of Electrical and Electronics Engineers. (2017). IEC/IEEE 62704-1:2017: Determining the peak spatial-average specific absorption rate (SAR) in the human body from wireless communications devices, 30 MHz to 6 GHz — Part 1: General requirements for using the finite-difference time-domain (FDTD) method for SAR calculations (1st ed.). Geneva, Switzerland & New York, NY: IEC/IEEE. ISBN 978-2-8322-4769-3.
8. Malik, S. J., Beqiri, A., Price, A. N., Teixeira, J. N., Hand, J. W., & Hajnal, J. V. (2015). Specific absorption rate in neonates undergoing magnetic resonance procedures at 1.5 T and 3 T. NMR in Biomedicine, 28(3), 344–352. doi:10.1002/nbm.3256 [doi]
9. Malik, S. J., Hand, J. W., & Hajnal, J. V. (2017). The effect of variable amniotic fluid conductivity and fetal tissue properties on B1+ and local SAR for fetal imaging at 3 T. Proceedings of the International Society for Magnetic Resonance in Medicine, 25, 5578. https://cds.ismrm.org/protected/17MProceedings/PDFfiles/5578.html
10. Aubry, J.-F., Attali, D., Schafer, M. E., Fouragnan, E., Caskey, C. F., Chen, R., Darmani, G., Bubrick, E. J., Sallet, J., Butler, C. R., Stagg, C. J., Klein-Flügge, M. C., Yoo, S.-S., Holland, C., Treeby, B., Martin, E., Verhagen, L., & Butts Pauly, K. (2023). ITRUSST consensus on biophysical safety for transcranial ultrasound stimulation. arXiv. doi:10.48550/arXiv.2311.05359 [doi]
11. Rao, V., Coetzee, J., Parvaz, L., Penalba, A., Adamson, M., & Yoon, B. C. Y. (2025). Evaluation of temperature elevation associated with low-intensity focused ultrasound (LIFU) stimulation with or without a deep brain electrode. Brain Stimulation, 18(6), 1876–1878. doi:10.1016/j.brs.2025.10.003 [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/568-01-010