Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
531-03-012 / 531-03-012 ISMRM Abstract

What does FEXI measure in neurons?

Primary: Diffusion - Microstructure
Secondary: Neuro - Gray Matter
531-03-012 · Exploring Brain Microstructure Across White Matter, Gray Matter, and in TBI · Wednesday, 13 May, 4:00 PM–5:36 PM · Roof Terrace
531-03-012 · Exploring Brain Microstructure Across White Matter, Gray Matter, and in TBI · Wednesday, 13 May, 4:00 PM–5:36 PM · Roof Terrace
Keywords: FEXI Neurons Eigenvalues Water exchange Diffusion MRI modelling
Accepted
Valerij G Kiselev 1, Jing-Rebecca Li2
1Neurophysics, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
2ENSTA Paris, Unité de Mathématiques Appliquées (UMA), Inria-Saclay, Equipe Idefix, France
Presenting Author: Valerij G Kiselev

Synopsis

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References

1. C. Li et al. “Measuring water exchange on a preclinical MRI system using filter exchange and diffusion time dependent kurtosis imaging”. In: Magn Reson Med 89.4 (Apr. 2023), pp. 1441–1455. doi: 10.1002/mrm.29536. [doi]
2. I. Åslund et al. “Filter-exchange PGSE NMR determination of cell membrane permeability”. In: J Magn Reson 200.2 (Oct. 2009), pp. 291–295. doi: https://doi.org/10.1016/j.jmr.2009.07.015. [doi]
3. S. Lasiˇc et al. “Apparent exchange rate mapping with diffusion MRI”. In: Magnetic Resonance in Medicine 66.2 (2011), pp. 356–365. doi: 10.1002/mrm.22782. [doi]
4. M. Nilsson et al. “Noninvasive mapping of water diffusional exchange in the human brain using filter-exchange imaging”. In: Magn Reson Med 69.6 (June 2013), pp. 1573–81. doi: 10.1002/mrm.24395. [doi]
5. D. Bernin and D. Topgaard. “NMR diffusion and relaxation correlation methods: New insights in heterogeneous materials”. In: Current opinion in colloid & interface science 18.3 (2013), pp. 166–172.
6. M. Khateri et al. “What does FEXI measure?” In: NMR in Biomedicine (2022), e4804. doi: 10.1002/nbm.4804. [doi]
7. NeuroMorpho.Org. NeuroMorpho.Org (RRID:SCR 002145). https://neuromorpho.org.
8. J.-R. Li et al. “SpinDoctor: A MATLAB toolbox for diffusion MRI simulation”. In: NeuroImage 202 (2019), p. 116120. doi: 10.1016/j.neuroimage.2019.116120. [doi]
9. C. Fang et al. “Diffusion MRI simulation of realistic neurons with SpinDoctor and the Neuron Module”. In: NeuroImage 222 (2020), p. 117198. doi: 10.1016/j.neuroimage.2020.117198. [doi]
10. B. Dhital et al. “Intra-axonal diffusivity in brain white matter”. In: NeuroImage 189 (Jan. 2019), pp. 543–550. doi: 10.1016/j.neuroimage.2019.01.015. [doi]

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http://echo.ismrm.org/p/ISMRM2026/531-03-012