perivascular spaces
Giant Tumefactive Perivascular Spaces
... Surgery was performed in 12 patients. In seven cases, biopsy was performed. Histopathologic results in most cases (6/7) disclosed a pial-lined cyst with no evidence of neoplasm or infection. One patient with a midbrain ...
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Cerebral perivascular spaces as an important diagnostic marker of cerebral small vessel disease and brain pathology
... Perivascular spaces (Virchow-Robin spaces) surround small perforating arteries, arterioles, capillaries, venules of the brain and are a drainage system that helps to eliminate products of neurons ...
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Pulsatile flow drivers in brain parenchyma and perivascular spaces: a resistance network model study
... cortical perivascular spaces of rats with an open cranial window preparation and using video-densitometric measure- ments described slow oscillatory tracer motion within the PVS that was not biased in ...
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Reliability of an automatic classifier for brain enlarged perivascular spaces burden and comparison with human performance
... In the brain, enlarged perivascular spaces (PVS) relate to cerebral small vessel disease (SVD), poor cognition, inflammation and hypertension. We propose a fully automatic scheme that uses a support vector ...
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Prevalence of and risk factors for enlarged perivascular spaces in adult patients with moyamoya disease
... moyamoya disease. Although ivy sign and white matter lesions were not selected in multivariate analysis, the odds ratio revealed high values that were significant. The ivy sign is associated with low cerebral perfusion ...
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Perivascular Spaces in Old Age: Assessment, Distribution, and Correlation with White Matter Hyperintensities
... MATERIALS AND METHODS: This population-based study included 530 individuals who did not have dementia and were not institution- alized (age, ⱖ 60 years or older; mean age, 70.7 years; 58.9% women) who were living in ...
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Quantitative MRI of Perivascular Spaces at 3T for Early Diagnosis of Mild Cognitive Impairment
... enlarged perivascular spaces were calculated to be ...enlarged perivascular spaces for a patient with mild cognitive impairment and a control ...enlarged perivascular spaces as a ...
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Brain Perivascular Spaces as Biomarkers of Vascular Risk: Results from the Northern Manhattan Study
... Small PVSs were found in 91% of the sample (per-participant mean, 5.5 ⫾ 3.8; median, 5; range, 0 –22), while large PVSs were present in 42% (20% had only 1 large PVS; 22% had ⱖ 2 large PVSs). Small PVSs were more often ...
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Subcortical Cystic Lesions within the Anterior Superior Temporal Gyrus: A Newly Recognized Characteristic Location for Dilated Perivascular Spaces
... Dilated perivascular spaces, which may mimic cystic neoplasms, are known to occur in the inferior basal ganglia and mesen- cephalothalamic regions; a focal preference within the subcortical white matter has ...
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<p>The relationship between blood–brain barrier permeability and enlarged perivascular spaces: a cross-sectional study</p>
... Results: A total of 109 participants aged 49 – 90 years (mean age of 69.85 years) were enrolled. The proportions of participants presenting high-grade (>10) EPVS in the CSO and BG were 50.5% and 44.0%, respectively. ...
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Perivascular Spaces Are Associated with Atherosclerosis: An Insight from the Northern Manhattan Study
... Parenchymal hypointensities observed in 3D axial T1 with an effective diameter of ⬍ 3 mm and an absent FLAIR hyperintensity were considered to represent perivascular spaces (Fig 1). Due to the large number ...
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Giant perivascular spaces: two case reports
... a 48-year-old woman suffering from right-sided, pulsating headache, and left-sided hemi-hypesthesia. The CT and MRI scans of the brain disclosed right-sided cysts in the white matter. Our case 2 involved cysts unilateral ...
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Histologic Characteristics of Normal Perivascular Spaces along the Optic Tract: New Pathogenetic Mechanism for Edema in Tumors in the Pituitary Region
... PV spaces are present along the middle portion of the ...subarachnoid spaces was histologically ...PV spaces explain the clinical features of edemas; these findings anatomically support the ...
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Dilated Perivascular Spaces in the Basal Ganglia Are a Biomarker of Small Vessel Disease in a Very Elderly Population with Dementia
... The perivascular space-1 score was higher in vascular dementia and Alzheimer disease than in healthy volunteers (P ⬍ ...The perivascular space-2 score in the centrum semiovale showed no intergroup ...
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Dilated Perivascular Spaces: Hallmarks of Mild Traumatic Brain Injury
... that perivascular dilation represents a perma- nent morphologic ...the perivascular space might have contributed to the persistence of the increased number of dilated VRS over ...
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MRI assessment of whole-brain structural changes in aging
... lesions (cortical infarcts), subcortical lesions, and subcortical dilated perivascular spaces (GM-SV). Subsequent categories assess deep white matter lesions (DWM), periventricular white matter lesions ...
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Etiology of isolated pontine infarctions: a study based on high-resolution MRI and brain small vessel disease scores
... Methods: Acute ischemic stroke patients, comprising 117 PPI patients and 40 SDPI patients, were enrolled. High-resolution magnetic resonance imaging (HR-MRI) and routine MRI sequences were performed for each patient, and ...
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Brain MR: Pathologic Correlation with Gross and Histopathology 1 Lacunar Infarction and Virchow Robin Spaces
... On the long TR/short TE sequence F, cystic infarct, dilated perivascular spaces, and fluid in sulci open arrows are hyperintense relative to brain parenchyma both gray and white matter..[r] ...
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Safety of Angioplasty for Intracranial Artery
... the perivascular spaces and central ...cular spaces across the interstitial space and into the central ...of perivascular and interstitial spaces (4) and that when you impart energy ...
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Evaluation of Common Structural Brain Changes in Aging and Alzheimer Disease with the Use of an MRI Based Brain Atrophy and Lesion Index: A Comparison Between T1WI and T2WI at 1 5T and 3T
... dilated perivascular spaces (GM-SV), deep white matter lesions (DWM), periventricular white matter lesions, lesions in the basal ganglia and surrounding areas (including the caudate, putamen, globus ...
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