Potential pitfalls of using fractional anisotropy, axial diffusivity, and radial diffusivity as biomarkers of cerebral white matter microstructure

CR Figley, MN Uddin, K Wong, J Kornelsen… - Frontiers in …, 2022 - frontiersin.org
Fractional anisotropy (FA), axial diffusivity (AD), and radial diffusivity (RD) are commonly
used as MRI biomarkers of white matter microstructure in diffusion MRI studies of …

Myelin water imaging to detect demyelination and remyelination and its validation in pathology

C Laule, GRW Moore - Brain Pathology, 2018 - Wiley Online Library
Damage to myelin is a key feature of multiple sclerosis (MS) pathology. Magnetic resonance
imaging (MRI) has revolutionized our ability to detect and monitor MS pathology in vivo …

Validating the sensitivity of inhomogeneous magnetization transfer (ihMT) MRI to myelin with fluorescence microscopy

G Duhamel, VH Prevost, M Cayre, A Hertanu… - Neuroimage, 2019 - Elsevier
Abstract Inhomogeneous Magnetization Transfer (ihMT) is a development from the MT MRI
technique. IhMT can be considered as a dipolar order relaxation time (T 1D) weighted …

[HTML][HTML] Towards in vivo g-ratio mapping using MRI: Unifying myelin and diffusion imaging

S Mohammadi, MF Callaghan - Journal of neuroscience methods, 2021 - Elsevier
Background The g-ratio, quantifying the comparative thickness of the myelin sheath
encasing an axon, is a geometrical invariant that has high functional relevance because of …

[HTML][HTML] Characterization of the cortical myeloarchitecture with inhomogeneous magnetization transfer imaging (ihMT)

F Munsch, G Varma, M Taso, O Girard, A Guidon… - Neuroimage, 2021 - Elsevier
Background Myelin specific imaging techniques to characterize white matter in
demyelinating diseases such as multiple sclerosis (MS) have become an area of increasing …

[HTML][HTML] Quantitative MRI in leukodystrophies

MD Stellingwerff, PJW Pouwels, SD Roosendaal… - NeuroImage: Clinical, 2023 - Elsevier
Leukodystrophies constitute a large and heterogeneous group of genetic diseases primarily
affecting the white matter of the central nervous system. Different disorders target different …

Inhomogeneous magnetization transfer imaging: Concepts and directions for further development

DC Alsop, E Ercan, OM Girard, AL Mackay… - NMR in …, 2023 - Wiley Online Library
Off‐resonance radio frequency irradiation can induce the ordering of proton spins in the
dipolar fields of their neighbors, in molecules with restricted mobility. This dipolar order …

High‐frequency longitudinal white matter diffusion‐and myelin‐based MRI database: Reliability and variability

M Edde, G Theaud, M Dumont, A Théberge… - Human Brain …, 2023 - Wiley Online Library
Assessing the consistency of quantitative MRI measurements is critical for inclusion in
longitudinal studies and clinical trials. Intraclass coefficient correlation and coefficient of …

Myelin biomarkers in the healthy adult brain: Correlation, reproducibility, and the effect of fiber orientation

SR Morris, IM Vavasour, A Smolina… - Magnetic …, 2023 - Wiley Online Library
Purpose We investigated the correlation, reproducibility, and effect of white matter fiber
orientation for three myelin‐sensitive MRI techniques: magnetization transfer ratio (MTR) …

MRI assessment of multiple dipolar relaxation time (T1D) components in biological tissues interpreted with a generalized inhomogeneous magnetization transfer …

VND Carvalho, A Hertanu, A Grélard, S Mchinda… - Journal of Magnetic …, 2020 - Elsevier
T 1 D, the relaxation time of dipolar order, is sensitive to slow motional processes. Thus T 1
D is a probe for membrane dynamics and organization that could be used to characterize …