Analysis of white matter damage in patients with multiple sclerosis via a novel in vivo MR method for measuring myelin, axons, and g-ratio

A Hagiwara, M Hori, K Yokoyama… - American Journal …, 2017 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Myelin and axon volume fractions can now be estimated
via MR imaging in vivo, as can the g-ratio, which equals the ratio of the inner to the outer …

White matter abnormalities in multiple sclerosis evaluated by quantitative synthetic MRI, diffusion tensor imaging, and neurite orientation dispersion and density …

A Hagiwara, K Kamagata, K Shimoji… - American Journal …, 2019 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: A number of MR-derived quantitative metrics have been
suggested to assess the pathophysiology of MS, but the reports about combined analyses of …

Myelin and axon pathology in multiple sclerosis assessed by myelin water and multi-shell diffusion imaging

R Rahmanzadeh, PJ Lu, M Barakovic, M Weigel… - Brain, 2021 - academic.oup.com
Damage to the myelin sheath and the neuroaxonal unit is a cardinal feature of multiple
sclerosis; however, a detailed characterization of the interaction between myelin and axon …

Imaging G-ratio in multiple sclerosis using high-gradient diffusion MRI and macromolecular tissue volume

F Yu, Q Fan, Q Tian, C Ngamsombat… - American Journal …, 2019 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Remyelination represents an area of great therapeutic
interest in multiple sclerosis but currently lacks a robust imaging marker. The purpose of this …

Utility of a multiparametric quantitative MRI model that assesses myelin and edema for evaluating plaques, periplaque white matter, and normal-appearing white …

A Hagiwara, M Hori, K Yokoyama… - American Journal …, 2017 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: T1 and T2 values and proton density can now be
quantified on the basis of a single MR acquisition. The myelin and edema in a voxel can …

Comparing MRI metrics to quantify white matter microstructural damage in multiple sclerosis

I Lipp, DK Jones, S Bells, E Sgarlata… - Human brain …, 2019 - Wiley Online Library
Quantifying white matter damage in vivo is becoming increasingly important for investigating
the effects of neuroprotective and repair strategies in multiple sclerosis (MS). While various …

[HTML][HTML] Myelin measurement using quantitative magnetic resonance imaging: a correlation study comparing various imaging techniques in patients with multiple …

L Saccenti, A Hagiwara, C Andica, K Yokoyama… - Cells, 2020 - mdpi.com
Evaluation of myelin by magnetic resonance imaging (MRI) is a difficult challenge, but holds
promise in demyelinating diseases, such as multiple sclerosis (MS). Although multiple …

Assessment of lesion pathology in multiple sclerosis using quantitative MRI morphometry and magnetic resonance spectroscopy

PM Matthews, E Pioro, S Narayanan, ND Stefano, L Fu… - Brain, 1996 - academic.oup.com
Quantitative measurement of MRI-defined brain lesions can provide an index of the extent
and activity of disease in multiple sclerosis patients. However, the relationships between …

Quantitative neuroimaging measures of myelin in the healthy brain and in multiple sclerosis

J O'Muircheartaigh, I Vavasour… - Human Brain …, 2019 - Wiley Online Library
Quantitative magnetic resonance imaging (MRI) techniques have been developed as
imaging biomarkers, aiming to improve the specificity of MRI to underlying pathology …

MRI-derived g-ratio and lesion severity in newly diagnosed multiple sclerosis

EN York, SJ Martin, R Meijboom… - Brain …, 2021 - academic.oup.com
Myelin loss is associated with axonal damage in established multiple sclerosis. This
relationship is challenging to study in vivo in early disease. Here, we ask whether myelin …