On modeling
Map** tissue microstructure with MRI holds great promise as a noninvasive window into
tissue organization at the cellular level. Having originated within the realm of diffusion NMR …
tissue organization at the cellular level. Having originated within the realm of diffusion NMR …
Quantifying brain microstructure with diffusion MRI: Theory and parameter estimation
We review, systematize and discuss models of diffusion in neuronal tissue, by putting them
into an overarching physical context of coarse‐graining over an increasing diffusion length …
into an overarching physical context of coarse‐graining over an increasing diffusion length …
[HTML][HTML] SANDI: a compartment-based model for non-invasive apparent soma and neurite imaging by diffusion MRI
This work introduces a compartment-based model for apparent cell body (namely soma) and
neurite density imaging (SANDI) using non-invasive diffusion-weighted MRI (DW-MRI). The …
neurite density imaging (SANDI) using non-invasive diffusion-weighted MRI (DW-MRI). The …
Noninvasive quantification of axon radii using diffusion MRI
Axon caliber plays a crucial role in determining conduction velocity and, consequently, in the
timing and synchronization of neural activation. Noninvasive measurement of axon radii …
timing and synchronization of neural activation. Noninvasive measurement of axon radii …
[HTML][HTML] Neurite Exchange Imaging (NEXI): A minimal model of diffusion in gray matter with inter-compartment water exchange
Biophysical models of diffusion in white matter have been center-stage over the past two
decades and are essentially based on what is now commonly referred to as the “Standard …
decades and are essentially based on what is now commonly referred to as the “Standard …
[HTML][HTML] Challenges for biophysical modeling of microstructure
The biophysical modeling efforts in diffusion MRI have grown considerably over the past 25
years. In this review, we dwell on the various challenges along the journey of bringing a …
years. In this review, we dwell on the various challenges along the journey of bringing a …
Rotationally-invariant map** of scalar and orientational metrics of neuronal microstructure with diffusion MRI
We develop a general analytical and numerical framework for estimating intra-and extra-
neurite water fractions and diffusion coefficients, as well as neurite orientational dispersion …
neurite water fractions and diffusion coefficients, as well as neurite orientational dispersion …
[HTML][HTML] Diffusion time dependence, power-law scaling, and exchange in gray matter
Characterizing neural tissue microstructure is a critical goal for future neuroimaging.
Diffusion MRI (dMRI) provides contrasts that reflect diffusing spins' interactions with myriad …
Diffusion MRI (dMRI) provides contrasts that reflect diffusing spins' interactions with myriad …
[HTML][HTML] Post mortem map** of connectional anatomy for the validation of diffusion MRI
Diffusion MRI (dMRI) is a unique tool for the study of brain circuitry, as it allows us to image
both the macroscopic trajectories and the microstructural properties of axon bundles in vivo …
both the macroscopic trajectories and the microstructural properties of axon bundles in vivo …
Towards unconstrained compartment modeling in white matter using diffusion‐relaxation MRI with tensor‐valued diffusion encoding
B Lampinen, F Szczepankiewicz… - Magnetic resonance …, 2020 - Wiley Online Library
Purpose To optimize diffusion‐relaxation MRI with tensor‐valued diffusion encoding for
precise estimation of compartment‐specific fractions, diffusivities, and T2 values within a two …
precise estimation of compartment‐specific fractions, diffusivities, and T2 values within a two …