Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
568-02-001 ISMRM Abstract

GTF-Net: Parametric Identification of Magnetic Resonance Gradient Systems

Primary: Physics & Engineering - System Imperfections
Secondary: Analysis Methods - Foundation Models
568-02-001 · System Imperfections and Field Monitoring · Wednesday, 13 May, 9:15 AM–10:10 AM · Digital Posters Row I
Keywords: System Imperfections: Measurement & Correction AI Foundation Model Non-Cartesian MRI Gradient impulse response function
Accepted
Yang Chen1,2, Hongyu Guo1, Wentao Liu2,3,4, Weinan Tang5, Qian Zeng2, Hongbin Wang 5, Yupeng Cao5, Siqi Wang2,4
1School of Electrical Engineering, Shenyang University of Technology, Shen Yang, China
2CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
3National Center for Nanoscience and Technology, Beijing, China
4School of Future Technology, University of Chinese Academy of Sciences, Beijing, China
5Beijing Wandong Medical Technology Co., Ltd, Beijing, China
Presenting Author: Hongbin Wang

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References

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3. He Z, Zhu YN, Chen Y. A deep unrolled neural network for real-time MRI-guided brain intervention. Nat Commun. 2023;14:8257.
4. Stich M, Wech T, Slawig A, et al. Gradient waveform pre-emphasis based on the gradient system transfer function. Magn Reson Med. 2018;80(4):1521-1532.
5. Rahmer J, Mazurkewitz P, Börnert P, Nielsen T. Rapid acquisition of the 3D MRI gradient impulse response function using a simple phantom measurement. Magn Reson Med. 2019;82(6):2146-2159.
6. Scholten H, Lohr D, Wech T, Köstler H. Fast measurement of the gradient system transfer function at 7 T. Magn Reson Med. 2023;89(4):1644-1659.
7. Scholten H, Wech T, Köhler S, et al. On the correction of spiral trajectories on a preclinical MRI scanner with a high-performance gradient insert. NMR Biomed. 2024;37(12):e5249.
8. Campbell-Washburn AE, Xue H, Lederman RJ, Faranesh AZ, Hansen MS. Real-time distortion correction of spiral and echo planar images using the gradient system impulse response function. Magn Reson Med. 2016;75(6):2278-2285.
9. Cheng J. Gradient characterization in magnetic resonance imaging. 2007.
10. Vannesjo SJ, Haeberlin M, Kasper L, et al. Gradient system characterization by impulse response measurements with a dynamic field camera. Magn Reson Med. 2013;69(2):583-593.
11. Addy NO, Wu HH, Nishimura DG. Simple method for MR gradient system characterization and k-space trajectory estimation. Magn Reson Med. 2012;68(1):120-129.
12. Zhang E, Pintelon R. Nonparametric identification of linear dynamic errors-in-variables systems. Automatica. 2018; 94:398-407.
13. Fessler JA, Sutton BP. Nonuniform fast Fourier transforms using min-max interpolation. IEEE Trans Signal Process. 2003;51(2):560-572.

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http://echo.ismrm.org/p/ISMRM2026/568-02-001