Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
470-04-097 ISMRM Abstract

Spectral optimization of rosette k-space trajectories for improved fat suppression

Primary: Acquisition & Reconstruction - Pulse Sequence Design and Spatial Encoding Methods
Secondary: Contrast Mechanisms - Fat & Fat/Water Separation
470-04-097 · Fat-Water Separation and Fat Suppression · Tuesday, 12 May, 9:15 AM–10:10 AM · Traditional Posters | Exhibition Hall
Keywords: Non-cartesian Trajectory Water-fat separation technology Rosette
Accepted
Xin Bai1, Haotian Hong1, Yuyang Ren 1, Wenlei Shang1, Zijian Zhou1, Peng Hu1,2,3
1School of Biomedical Engineering, ShanghaiTech University, Shanghai, China
2Shanghai Clinical Research and Trial Center, ShanghaiTech University, Shanghai, China
3State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai, China
Presenting Author: Yuyang Ren

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References

1. Noll D C. Multishot rosette trajectories for spectrally selective MR imaging[J]. IEEE transactions on medical imaging, 1997, 16(4): 372-377. DOI: 10.1109/42.611345 [doi]
2. Liu Y, Hamilton J, Eck B, et al. Myocardial T1 and T2 quantification and water–fat separation using cardiac MR fingerprinting with rosette trajectories at 3T and 1.5 T[J]. Magnetic resonance in medicine, 2021, 85(1): 103-119. https://doi.org/10.1002/mrm.28404 [doi]
3. Lustig M, Kim SJ, Pauly JM. A fast method for designing timeoptimal gradient waveforms for arbitrary k-space trajectories. IEEE Trans Med Imaging. 2008;27:866-873. DOI: 10.1109/TMI.2008.922699 [doi]
4. Vaziri S, Lustig M. The fastest arbitrary k-space trajectories. In Proceedings of the 20th Annual Meeting of ISMRM, Melbourne, Australia, 2012. p. 2284.
5. Liu Y, Hamilton J, Jiang Y, et al. Cardiac MRF using rosette trajectories for simultaneous myocardial T1, T2, and proton density fat fraction mapping[J]. Frontiers in Cardiovascular Medicine, 2022, 9: 977603. PMID: 36204572 [pmid]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/470-04-097