5 papers
Dependence of the extra-cellular diffusion coefficient on the fractions of neurites and cell bodies in gray matter
Hong-Hsi Lee, Ali Abdollahzadeh, Hansol Lee +4
Purpose: The dependence of the long-time (tortuosity) limit of the extra-cellular diffusivity on the intra-cellular volume fraction is of fundamental importance for microstructure…
Geometry of the cumulant series in diffusion MRI
Santiago Coelho, Jenny Chen, Filip Szczepankiewicz +2
Water diffusion gives rise to micron-scale sensitivity of diffusion MRI (dMRI) to cellular-level tissue structure. Precision medicine and quantitative imaging depend on uncovering…
What if each voxel were measured with a different diffusion protocol?
Santiago Coelho, Gregory Lemberskiy, Ante Zhu +5
Expansion of diffusion MRI (dMRI) both into the realm of strong gradients, and into accessible imaging with portable low-field devices, brings about the challenge of gradient nonli…
Scattering approach to diffusion quantifies axonal damage in brain injury
Ali Abdollahzadeh, Ricardo Coronado-Leija, Hong-Hsi Lee +3
Early diagnosis and noninvasive monitoring of neurological disorders require sensitivity to elusive cellular-level alterations that occur much earlier than volumetric changes obser…
Denoising Improves Cross-Scanner and Cross-Protocol Test-Retest Reproducibility of Higher-Order Diffusion Metrics
Benjamin Ades-Aron, Santiago Coelho, Gregory Lemberskiy +5
The clinical translation of diffusion MRI (dMRI)-derived quantitative contrasts hinges on robust reproducibility, minimizing both same-scanner and cross-scanner variability. This s…