469-02-002 ISMRM Abstract

A robust and sub-array interchangeable rotation mechanism for gradient coil-free portable MRI

Primary: Physics & Engineering - Low-Field MRI

Secondary: Physics & Engineering - Gradients

469-02-002 · Low Field Applications and Systems · Tuesday, 12 May, 9:15 AM–10:10 AM · Digital Posters Row J

Keywords: Low-Field MRI Permanent Magnets Array Portable MRI Gradient Coil-Free

Accepted

David Ticacala Obregon ¹, Ming Yew Looi¹, shaoying huang¹

¹Engineering Product Development, Singapore University of Technology and Design, Singapore, Singapore

Presenting Author: David Ticacala Obregon

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.

References

1. “MagTetris,” GitHub, https://github.com/BioMed-EM-Lab/MagTetris (accessed Oct. 30, 2025).

2. C. Z. Cooley, J. P. Stockmann, B. D. Armstrong, M. Sarracanie, M. H. Lev, M. S. Rosen, and L. L. Wald, “Two-dimensional imaging in a lightweight portable MRI scanner without gradient coils,” Magnetic resonance in medicine, vol. 73, no. 2, pp. 872–883, 2015, DOI:10.1002/mrm.25147 [doi]

3. Zhi Hua Ren, Sergei Obruchkov, Dongwei Lu, Robin Dykstra, and S. Y. Huang, ‘A Low-field Portable Magnetic Resonance Imaging System for Head Imaging’, Progress in Electromagnetics Research Symposium 2017 in Singapore, 19-22 Nov. 2017, 10.1109/PIERS-FALL.2017.8293655 [doi]

4. T-O LIANG, Y. H. KOH, T. QIU, E. LI, W. YU, and S. Y. HUANG, “High-Performance Permanent Magnet Array Design by a Fast Genetic Algorithm (GA)-based Optimization for Low-Field Portable MRI,” Journal of Magnetic Resonance (JMR), Vol. 345, Dec. 2022, 107309, https://doi.org/10.1016/j.jmr.2022.107309 [doi]

5. T-O LIANG, Y. H. KOH, T. QIU, E. LI, W. YU, and S. Y. HUANG, “MagTetris: A Simulator for Fast Magnetic Field and Force Calculation for Permanent Magnet Array Designs,” Journal of Magnetic Resonance, Volume 352, 2023, 107463,https://doi.org/10.1016/j.jmr.2023.107463 [doi]

6. Oriental Motor. “PK523HPA-R2GL Stepper Motor.” Oriental Motor. https://www.orientalmotor.com.sg/sg/products/detail?hinmei=PK523HPA-R2GL (accessed Oct. 30, 2025).

7. Oriental Motor Co., Ltd., "BLHM450KCM-GFS: DC Input Brushless Motor BMU Series," Oriental Motor, Accessed: Oct. 30, 2025. [Online]. Available: https://www.orientalmotor.com.sg/sg/products/detail?hinmei=BLHM450KCM-GFS.

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/469-02-002