نتایج جستجو برای: leukoaraiosis
تعداد نتایج: 714 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE The integrity of white matter tracts connecting different parts of the brain is important for rapid compensation for the lost function from ischemic stroke. Impaired white matter reserve capacity secondary to leukoaraiosis may facilitate detection of new symptomatic ischemic events that would otherwise remain inconspicuous after an initial ischemic stroke. We sought to id...
BACKGROUND There are no reported studies on the relationship between traffic crashes and brain tissue changes in healthy drivers. The relationship between traffic crashes and leukoaraiosis, a common magnetic resonance imaging finding, was investigated in this study. METHODS A total of 3,930 automobile drivers (2,037 men and 1,893 women; age, 21-87 years) who underwent brain magnetic resonance...
The objective of this study was to investigate the risk factors for leukoaraiosis or white matter hyperintensities (WMHs) in patients with cerebral infarction and the relevance of lipoprotein-associated phospholipase A2 (Lp-PLA2) levels to leukoaraiosis. Two hundred and sixty seven patients with cerebral infarction were categorized into two groups of patients with leukoaraiosis (121 cases) and ...
BACKGROUND Microangiopathic brain lesions can be separated in diffuse lesions - leukoaraiosis - and focal lesions - lacunes. Leukoaraiosis and lacunes are caused by common cerebrovascular risk factors, but whether they represent a common entity is not sufficiently investigated. The present study aimed to determine the clinical profiles associated with the extent of leukoaraiosis and lacunes. ...
OBJECTIVE To use an audiovestibular test battery to evaluate patients with leukoaraiosis in order to investigate the relationship between vertigo and dizziness and leukoaraiosis. DESIGN Retrospective study. SETTING Tertiary university hospital. Patients A total of 18 elderly patients with vertigo and dizziness and with leukoaraiosis confirmed by magnetic resonance imaging (hereafter, leukoa...
Leukoaraiosis quantified by computerized densitometric measurements of reduced Hounsfield numbers was correlated with local cerebral blood flow on the same computed tomographic images of 35 patients with multi-infarct dementia and 16 age-matched elderly normal volunteers. The ratio for area of frontal leukoaraiosis to total area of parenchyma among the patients was significantly greater than th...
Nonspecific periventricular white matter lucencies on computed tomograms (leukoaraiosis) were found in 141 (38%) of 367 patients with ischemic or hemorrhagic strokes. Patients with leukoaraiosis were significantly older than those without it and were significantly more likely to have hypertension, diabetes mellitus, general vascular disease, and lacunar infarcts on computed tomograms but were l...
Cerebral white matter hyperintensities on brain MRI (leukoaraiosis) are associated with increased risk of stroke and dementia. To assess the relationships of blood pressure level and circadian pattern with leukoaraiosis, we obtained 24-hour ambulatory blood pressure recordings and brain magnetic resonance images in 343 white and 267 black adults who were members of sibships that had >or=2 sibli...
BACKGROUND AND PURPOSE Close relations between leukoaraiosis detected by computed tomography or magnetic resonance imaging and stroke, particularly lacunar infarction, have been reported. We studied whether leukoaraiosis is related to long-term prognosis for patients with lacunar infarction. METHODS We examined monthly 215 patients with lacunar infarction after their first stroke. They compri...
PURPOSE To characterize multiple patterns of vascular changes in leukoaraiosis using in vivo magnetic resonance imaging (MRI) techniques. MATERIALS AND METHODS We measured cerebral blood flow (CBF), cerebrovascular reactivity (CVR), and blood-brain-barrier (BBB) leakage in a group of 33 elderly subjects (age: 72.3 +/- 6.8 years, 17 males, 16 females). Leukoaraiosis brain regions were identifi...
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