Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
564-01-012 ISMRM Abstract

Versatile Pseudoinverse-based MR Image Reconstruction for ASL: From Explicit Matrix Encoding to Accelerated CBF Mapping

Primary: Acquisition & Reconstruction - Image Reconstruction: Non-AI
Secondary: Contrast Mechanisms - Arterial Spin Labelling
564-01-012 · Perfusion and ASL Imaging: Recent Advances · Wednesday, 13 May, 8:20 AM–9:15 AM · Digital Posters Row E
Keywords: Image Reconstruction Iterative reconstruction Coil combination Arterial Spin Labelling (ASL) Cerebral blood flow (CBF)
Accepted
Benjamin White 1, Joonsung Lee2, David Shin3, Damian Tyler1,4, Florian Wiesinger5, James T Grist1,4,6
1Oxford Centre for Clinical MR Research (OCMR), University of Oxford, Oxford, United Kingdom
2GE HealthCare, San Ramon, United States of America
3GE HealthCare Global MR Applications & Workflow, Menlo Park, United States of America
4Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
5GE Healthcare, Munich, Germany
6Department of Radiology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
Presenting Author: Benjamin White

Synopsis

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References

1. MATLAB. “Solve system of linear equations — least-squares method.” MathWorks Documentation, online. Accessed October 2025. Available: https://uk.mathworks.com/help/matlab/ref/lsqr.html
2. Yeung K et al. Algebraic methods and computational strategies for pseudoinverse-based MR image reconstruction (Pinv-Recon). Sci Rep 15, 37997 (2025). doi:10.1038/s41598-025-21929-z [doi]
3. W. Y. Dai, D. Garcia, C. de Bazelaire, and D. C. Alsop, “Continuous flow-driven inversion for arterial spin labeling using pulsed radio frequency and gradient fields,” Magnetic Resonance in Medicine, vol. 60, no. 6, pp. 1488–1497, 2008. doi:10.1002/mrm.21790. PMID: 19025913 [doi] [pmid]
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5. C. A. Cocosco, V. Kollokian, R. K.–S. Kwan, and A. C. Evans, “BrainWeb: Online interface to a 3D MRI simulated brain database,” NeuroImage, vol. 5, no. 4, suppl. 2, p. S425, 1997. Presented at the 3rd Int. Conf. on Functional Mapping of the Human Brain, Copenhagen, May 1997. Accessed October 2025. Available: http://www.bic.mni.mcgill.ca/brainweb/
6. D. O. Walsh, A. F. Gmitro, and M. W. Marcellin, “Adaptive reconstruction of phased array MR imagery,” Magnetic Resonance in Medicine, vol. 43, no. 5, pp. 682–690, May 2000. PMID: 10800033 [pmid]
7. FMRIB Software Library (FSL). Oxford Centre for Functional MRI of the Brain (FMRIB), University of Oxford. Available: https://fsl.fmrib.ox.ac.uk/fsl/fslwiki
8. R. B. Buxton, L. R. Frank, E. C. Wong, B. Siewert, S. Warach, and R. R. Edelman, “A general kinetic model for quantitative perfusion imaging with arterial spin labeling,” Magnetic Resonance in Medicine, vol. 40, no. 3, pp. 383–396, Sep. 1998, doi:10.1002/mrm.1910400308 [doi]

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http://echo.ismrm.org/p/ISMRM2026/564-01-012