منابع مشابه
White matter hyperintensity penumbra.
BACKGROUND AND PURPOSE White matter hyperintensities (WMHs) are associated with progressive age-related cognitive decline and cardiovascular risk factors, but their biological relevance as indicators of generalized white matter injury is unclear. Diffusion tensor imaging provides more sensitive indications of subtle white matter disruption and can therefore clarify whether WMHs represent foci o...
متن کاملCharacterizing the white matter hyperintensity penumbra with cerebral blood flow measures
OBJECTIVE White matter hyperintensities (WMHs) are common with age, grow over time, and are associated with cognitive and motor impairments. Mechanisms underlying WMH growth are unclear. We aimed to determine the presence and extent of decreased normal appearing white matter (NAWM) cerebral blood flow (CBF) surrounding WMHs to identify 'WM at risk', or the WMH CBF penumbra. We aimed to further ...
متن کاملValidation of Automated White Matter Hyperintensity Segmentation
Introduction. White matter hyperintensities (WMHs) are a common finding on MRI scans of older people and are associated with vascular disease. We compared 3 methods for automatically segmenting WMHs from MRI scans. Method. An operator manually segmented WMHs on MRI images from a 3T scanner. The scans were also segmented in a fully automated fashion by three different programmes. The voxel overl...
متن کاملChronic Kidney Disease Is Associated With White Matter Hyperintensity Volume
Background and Purpose—White matter hyperintensities have been associated with increased risk of stroke, cognitive decline, and dementia. Chronic kidney disease is a risk factor for vascular disease and has been associated with inflammation and endothelial dysfunction, which have been implicated in the pathogenesis of white matter hyperintensities. Few studies have explored the relationship bet...
متن کاملWhite matter hyperintensity reduction and outcomes after minor stroke
OBJECTIVE To assess factors associated with white matter hyperintensity (WMH) change in a large cohort after observing obvious WMH shrinkage 1 year after minor stroke in several participants in a longitudinal study. METHODS We recruited participants with minor ischemic stroke and performed clinical assessments and brain MRI. At 1 year, we assessed recurrent cerebrovascular events and dependen...
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ژورنال
عنوان ژورنال: Stroke
سال: 2011
ISSN: 0039-2499,1524-4628
DOI: 10.1161/strokeaha.110.609768