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@ARTICLE{DeSantis:140615,
author = {De Santis, Silvia and Bastiani, Matteo and Droby, Amgad and
Kolber, Pierre and Zipp, Frauke and Pracht, Eberhard and
Stöcker, Tony and Groppa, Sergiu and Roebroeck, Alard},
title = {{C}haracterizing {M}icrostructural {T}issue {P}roperties in
{M}ultiple {S}clerosis with {D}iffusion {MRI} at 7 {T} and
3 {T}: {T}he {I}mpact of the {E}xperimental {D}esign.},
journal = {Neuroscience},
volume = {403},
issn = {0306-4522},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {DZNE-2020-06937},
pages = {17-26},
year = {2019},
abstract = {The recent introduction of advanced magnetic resonance (MR)
imaging techniques to characterize focal and global
degeneration in multiple sclerosis (MS), like the Composite
Hindered and Restricted Model of Diffusion, or CHARMED,
diffusional kurtosis imaging (DKI) and Neurite Orientation
Dispersion and Density Imaging (NODDI) made available new
tools to image axonal pathology non-invasively in vivo.
These methods already showed greater sensitivity and
specificity compared to conventional diffusion tensor-based
metrics (e.g., fractional anisotropy), overcoming some of
its limitations. While previous studies uncovered global and
focal axonal degeneration in MS patients compared to healthy
controls, here our aim is to investigate and compare
different diffusion MRI acquisition protocols in their
ability to highlight microstructural differences between MS
and control tissue over several much used models. For
comparison, we contrasted the ability of fractional
anisotropy measurements to uncover differences between
lesion, normal-appearing white matter (WM), gray matter and
healthy tissue under the same imaging protocols. We show
that: (1) focal and diffuse differences in several
microstructural parameters are observed under clinical
settings; (2) advanced models (CHARMED, DKI and NODDI) have
increased specificity and sensitivity to neurodegeneration
when compared to fractional anisotropy measurements; and (3)
both high (3 T) and ultra-high fields (7 T) are viable
options for imaging tissue change in MS lesions and normal
appearing WM, while higher b-values are less beneficial
under the tested short-time (10 min acquisition)
conditions.},
keywords = {Adult / Cohort Studies / Diffusion Magnetic Resonance
Imaging: instrumentation / Diffusion Magnetic Resonance
Imaging: methods / Humans / Image Interpretation,
Computer-Assisted / Multiple Sclerosis: diagnostic imaging /
Multiple Sclerosis: therapy / Nerve Degeneration: diagnostic
imaging / Research Design / Sensitivity and Specificity /
Time Factors},
cin = {AG Stöcker},
ddc = {610},
cid = {I:(DE-2719)1013026},
pnm = {345 - Population Studies and Genetics (POF3-345)},
pid = {G:(DE-HGF)POF3-345},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29631021},
doi = {10.1016/j.neuroscience.2018.03.048},
url = {https://pub.dzne.de/record/140615},
}