467-05-005 ISMRM Abstract

Compact Low-Noise Preamplifiers for 11.7 T MRI: Design and Experimental Characterization

Primary: Physics & Engineering - High-Field MRI

Secondary: Physics & Engineering - Non-Array RF Coils, Antennas & Waveguides

467-05-005 · Frontiers of System Design · Tuesday, 12 May, 4:00 PM–4:55 PM · Digital Posters Row H

Keywords: 11.7T Preamplifier Impedance matching Noise figure Ultra-high-field MRI

Accepted

Mona Alem ¹, John C Hermann¹, Sam-Luca J.D. Hansen¹, Mirsad Mahmutovic¹, Katrin Heil¹, Nicolas Boulant², Boris Keil^1,3

¹Mittelhessen University of Applied Sciences, Giessen, Germany

²CEA NeuroSpin, Paris-Saclay University, CNRS, Gif-Sur-Yvette, France

³Department of Diagnostic and Interventional Radiology, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Giessen, Germany

Presenting Author: Mona Alem

Synopsis

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References

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2. Ugurbil K. Imaging at ultrahigh magnetic fields: History, challenges, and solutions. NeuroImage. 2018;168:7-32.

3. Pohmann R, Scheffler K. Ultra-high-field MRI: Benefits and challenges. Drug Discov Today: Technol. 2013;11:31-38.

4. Murakami JW, Hayes CE. Considerations for RF coil design at high magnetic fields. Magn Reson Med. 1991;22(2):192-198. https://doi.org/10.1002/mrm.1910220207 [doi]

5. Roemer PB et al. The NMR phased array. Magn Reson Med. 1990;16(2):192-225. https://doi.org/10.1002/mrm.1910160203 [doi]

6. Keysight Technologies. Noise Figure Measurement Accuracy — The Y-Factor Method. App Note 5952-3706. https://literature.cdn.keysight.com/litweb/pdf/5952-3706.pdf

7. Almokdad S, Gapais P-F, Luong M, et al. Design of a Miniaturized High Impedance Preamplifier for 7T MRI. Proc. Intl. Soc. Mag. Reson. Med. 2022;30:2001. DOI: https://doi.org/10.58530/2022/2001 [doi]

8. Huber KM, Hemmerlein M, Biber S, et al. A Preamplifier for 7T MRI with Extended Dynamic Range and Integrated Cable Trap. Proc Intl Soc Mag Reson Med. 2008;16:1122.

9. Williams SN, McElhinney P, Gunamony S. Ultra-high field MRI: parallel-transmit arrays and RF pulse design. Magn Reson Med. 2023; (Open Access). https://doi.org/10.1002/mrm.29887 [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/467-05-005