Contribution of White Matter Lesions to Gray Matter Atrophy in Multiple Sclerosis
نویسندگان
چکیده
منابع مشابه
White-matter lesions drive deep gray-matter atrophy in early multiple sclerosis: support from structural MRI.
BACKGROUND In MS, the relationship between lesions within cerebral white matter (WM) and atrophy within deep gray matter (GM) is unclear. OBJECTIVE To investigate the spatial relationship between WM lesions and deep GM atrophy. METHODS We performed a cross-sectional structural magnetic resonance imaging (MRI) study (3 Tesla) in 249 patients with clinically-isolated syndrome or relapsing-rem...
متن کاملContribution of white matter lesions to gray matter atrophy in multiple sclerosis: evidence from voxel-based analysis of T1 lesions in the visual pathway.
BACKGROUND The biological basis of gray matter (GM) atrophy in multiple sclerosis is not well understood, but GM damage seems to be the most critical factor leading to permanent disability. OBJECTIVE To assess to what extent white matter (WM) lesions contribute to regional GM atrophy in multiple sclerosis. DESIGN Because optic pathway GM atrophy and optic radiation lesions, rather than bein...
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PURPOSE To determine the fractional brain tissue volume changes in the gray matter and white matter of patients with relapsing-remitting multiple sclerosis (MS) and to correlate these measurements with clinical disability and total lesion load. MATERIALS AND METHODS Thirty patients with relapsing-remitting MS and 25 healthy control subjects underwent magnetic resonance imaging. Fractional bra...
متن کاملThe effect of hypointense white matter lesions on automated gray matter segmentation in multiple sclerosis.
Previous imaging studies assessing the relationship between white matter (WM) damage and matter (GM) atrophy have raised the concern that Multiple Sclerosis (MS) WM lesions may affect measures of GM volume by inducing voxel misclassification during intensity-based tissue segmentation. Here, we quantified this misclassification error in simulated and real MS brains using a lesion-filling method....
متن کاملCorrelation between white matter damage and gray matter lesions in multiple sclerosis patients
We observed the characteristics of white matter fibers and gray matter in multiple sclerosis patients, to identify changes in diffusion tensor imaging fractional anisotropy values following white matter fiber injury. We analyzed the correlation between fractional anisotropy values and changes in whole-brain gray matter volume. The participants included 20 patients with relapsing-remitting multi...
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ژورنال
عنوان ژورنال: Archives of Neurology
سال: 2009
ISSN: 0003-9942
DOI: 10.1001/archneurol.2008.562