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Diffusion tensor imaging of normal-appearing white matter in patients with neuromyelitis optica spectrum disorder and multiple sclerosis

Title
Diffusion tensor imaging of normal-appearing white matter in patients with neuromyelitis optica spectrum disorder and multiple sclerosis
Author
이종민
Keywords
diffusion tensor imaging; multiple sclerosis; neuromyelitis optica
Issue Date
2017-07
Publisher
WILEY
Citation
EUROPEAN JOURNAL OF NEUROLOGY, v. 24, no. 7, page. 966-973
Abstract
Background and purpose: The occult changes in normal-appearing white matter (NAWM) were investigated and compared amongst patients with neuromyelitis optica spectrum disorder (NMOSD), patients with multiple sclerosis (MS) and healthy controls (HCs) by applying tract-based spatial statistics to diffusion tensor imaging (DTI) data. Methods: Diffusion tensor imaging was performed with a 3-T scanner in 93 patients with NMOSD, 53 patients with MS and 43 HCs. Voxel-wise statistical analyses of the DTI data were performed using tract-based spatial statistics. Results: Compared to HCs, patients with NMOSD had significantly lower mean global fractional anisotropy, higher mean diffusivity and radial diffusivity, and no significant differences in axial diffusivity in their NAWM. Patients with MS demonstrated significantly lower mean global fractional anisotropy and higher mean diffusivity, axial diffusivity and radial diffusivity in the NAWM than did patients with NMOSD and HCs. Compared to patients with NMOSD, patients with MS had NAWM damage that was more extensive, particularly in the inferior cerebellar peduncle, external capsule, cingulum, superior fronto-occipital fasciculus and uncinate fasciculus. Conclusions: Using DTI, widespread occult damage was demonstrated in the NAWM of patients with NMOSD. However, the NAWM was less affected in patients with NMOSD than it was in patients with MS; specifically, the axonal injuries and diffusion abnormalities in the association fibers were more severe in patients with MS than they were in patients with NMOSD.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1111/ene.13321https://repository.hanyang.ac.kr/handle/20.500.11754/114956
ISSN
1351-5101; 1468-1331
DOI
10.1111/ene.13321
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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