Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
361-05-013 ISMRM Abstract

Comparing non-Cartesian k-space trajectories for sodium (23Na) imaging in the healthy brain

Primary: Contrast Mechanisms - Non-Proton
Secondary: Neuro
361-05-013 · Quantitative Imaging: Head and Neck I · Monday, 11 May, 4:10 PM–5:05 PM · Digital Posters Row B
Keywords: Brain Precision & Accuracy Non-cartesian Sodium MRI Total sodium concentration
Accepted
Louise Rosenqvist 1, Samuel Rot2,3, Ben Prestwich4, Susan Francis4,5, Hampus Olsson6, Matthew Clemence6, Bhavana S Solanky2,3, Michael Asghar4, Sofia Nordberg7, Isabella M Björkman-Burtscher7,8, Claudia A Gandini Wheeler-Kingshott, Maria Ljungberg1,9
1Department of Medical Radiation Sciences, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
2NMR Research unit, Queen Square Multiple Sclerosis Centre, Department of Neuroinflammation, UCL Queen Square Institute of Neurology, Faculty of Brain Sciences, University College London, London, United Kingdom
3Hawkes Institute, Department of Computer Science, University College London, London, United Kingdom
4Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, United Kingdom
5Nottingham Biomedical Research Centre, National Institute for Health Research, Nottingham, United Kingdom
6Philips Healthcare, Best, Netherlands
7Department of Radiology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
8Department of Radiology, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg, Sweden, University of Gothenburg, Gothenburg, Sweden
9Department of Biomedical Engineering and Medical Physics, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
Presenting Author: Louise Rosenqvist

Synopsis

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References

1. Pipe JG, Zwart NR, Aboussouan EA, et al. A new design and rationale for 3D orthogonally oversampled k-space trajectories. Magn Reson Med 2011;66(5):1303–1311.
2. Robison RK, Anderson AG, Pipe JG. Three-dimensional ultrashort echo-time imaging using a FLORET trajectory. Magn Reson Med 2017;78(3):1038–1049.
3. Rot S, Clemence M, Gandini Wheeler-Kingshott CAM. 3D Seiffert spiral k-space trajectories for a functional sodium (23Na) MRI protocol at 3T. In: The International Society of Magnetic Resonance in Medicine. Singapore; 2024.
4. Speidel T, Metze P, Rasche V. Efficient 3D Low-Discrepancy k-Space Sampling Using Highly Adaptable Seiffert Spirals. IEEE Trans Med Imaging 2019;38(8):1833–1840.
5. Rot S, Oliver-Taylor A, Baker RR, et al. Polyacrylamide Gel Calibration Phantoms for Quantification in Sodium MRI. NMR Biomed 2025;38(6).
6. Zwart NR, Johnson KO, Pipe JG. Efficient sample density estimation by combining gridding and an optimized kernel. Magn Reson Med 2012;67(3):701–710.
7. Barnett AH, Magland J, af Klinteberg L. A Parallel Nonuniform Fast Fourier Transform Library Based on an “Exponential of Semicircle" Kernel. SIAM Journal on Scientific Computing 2019;41(5):C479–C504.
8. Polak P, Schulte RF, Noseworthy MD. An approach to evaluation of the point-spread function for 23Na magnetic resonance imaging. NMR Biomed 2022;35(2).

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/361-05-013