Results 31 to 40 of about 43,516 (333)

White Matter Geometry Confounds Diffusion Tensor Imaging Along Perivascular Space (DTI-ALPS) Measures. [PDF]

Hum Brain Mapp
The perivascular space (PVS) is integral to glymphatic function, facilitating fluid exchange and waste clearance in the brain. Diffusion tensor imaging along the perivascular space (DTI‐ALPS) has been proposed as a noninvasive marker of perivascular ...
Schilling KG, Newton A, Tax C, Nilsson M, Chamberland M, Anderson A, Landman B, Descoteaux M.   +7 more
europepmc   +4 more sources

Longitudinal Changes in Cerebral Perfusion, Perivascular Space Volume, and Ventricular Volume in a Healthy Cohort Undergoing a Spaceflight Analog [PDF]

, 2023
Background and purpose: A global decrease in brain perfusion has recently been reported during exposure to a ground-based spaceflight analog. Considering that CSF and glymphatic flow are hypothesized to be propelled by arterial pulsations, it is unknown ...
J.A. Taylor, E.R. Mulder, Roberts, D.R., Taylor, J.A., G. Barisano, Barisano, G., Chamberlin, J.H., J.H. Chamberlin, D.A. Gerlach, D.R. Roberts, Mulder, E., Turner, M.D., J.B. Tidwell, Tidwell, J.B., H.R. Collins, F. Sepehrband, Sepehrband, F., G. Gauthier, Collins, H.R., M.D. Turner, Gerlach, D.A., Gauthier, G.   +21 more
core   +1 more source

Perivascular Spaces: Normal and Giant [PDF]

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques, 2007
The purpose of this paper is to discuss both normal perivascular spaces (PVSs) and pathological giant perivascular spaces (GPVSs). The anatomy and physiology of normal PVSs, including important immunological and lymphatic roles, are described. Special attention is given to the Magnetic Resonance Imaging (MRI) findings of both normal and GPVSs ...
Randy, Fanous, Mehran, Midia
openaire   +2 more sources

血流动力学与脑部血管周围间隙扩大关系的研究进展 Advance in Relationship between Cerebral Hemodynamics and Enlarged Perivascular Space

Zhongguo cuzhong zazhi, 2019
脑部血管周围间隙扩大是脑小血管病的影像学标志物之一，其发生发展的机制尚不明确。 现有研究表明血流动力学改变可能引起血管周围间隙扩大的发生发展。本文从血压、血管管壁僵硬 程度、脑血流量等因素对血管周围间隙扩大的影响作一简要综述，为探索血管周围间隙扩大的发病 机制及可能的治疗方法提供帮助。 Abstract: The enlarged perivascular space is one of the neuroimaging markers of cerebral small vessel ...
马琳，王伊龙
doaj   +1 more source

Unusually prominent perivascular spaces [PDF]

Neurology, 2001
A 50-year-old right-handed woman was referred for evaluation of abnormal MRI studies ( figure) that were obtained because of a 2-month history of left ear pain, which had resolved in the …
G R, Eichhorn, Z, Ammache, W, Bell, W T, Yuh   +3 more
openaire   +2 more sources

Perivascular spaces in the brain: anatomy, physiology and pathology [PDF]

, 2020
Perivascular spaces include a variety of passageways around arterioles, capillaries and venules in the brain, along which a range of substances can move.
Serge Charpak, Doubal, F, Lee, H, Montagne, A, Fergus N. Doubal, MacIntosh, B, Doubal, Fergus N., Boido, D, Tannenbaum, A, Brown, Rosalind, Melanie Sweeney, Allen Tannenbaum, Ballerini, L, Ramirez, Joel, Kenneth J. Smith, Sandra E. Black, Helene Benveniste, Boido, Davide, Axel Montagne, Davide Boido, Wardlow, J, Ramirez, J, Rosalind Brown, Bradley J. MacIntosh, Lucia Ballerini, Hedok Lee, Zlokovic, B, Montagne, Axel, Brown, R, Smith, Kenneth J., Wardlaw, Joanna M., Joel Ramirez, Nedergaard, M, Ravi L. Rungta, Benveniste, Helene, Charpak, Serge, Berislav V. Zlokovic, Joutel, A, Lee, Hedok, Maiken Nedergaard, Sweeney, M, Smith, K, Nedergaard, Maiken, Zlokovic, Berislav V., Joanna M. Wardlaw, Tannenbaum, Allen, Rungta, Ravi L., Ballerini, Lucia, Rungta, R, Humberto Mestre, Montagne, Axel; id_orcid, Joutel, Anne, Black, Sandra E., Sweeney, Melanie, MacIntosh, Bradley J., Mestre, H, Anne Joutel, Black, S, Mestre, Humberto, Charpak, S, Benveniste, H   +60 more
core   +1 more source

Sleep and perivascular spaces in the middle‐aged and elderly population [PDF]

, 2022
Sleep has been hypothesised to facilitate waste clearance from the brain. We aimed to determine whether sleep is associated with perivascular spaces on brain magnetic resonance imaging (MRI), a potential marker of impaired brain waste clearance, in a ...
Marleen de Bruijne, Vernooij, Meike W., Annemarie I. Luik, Yilmaz, Pinar, Dubost, Florian, Ikram, M. Arfan, de Bruijne, Marleen; id_orcid, Luik, Annemarie I., M. Arfan Ikram, Thom S. Lysen, Pinar Yilmaz, Lysen, Thom S., de Bruijne, Marleen, Vernooij, Meike W.; id_orcid, Florian Dubost, Meike W. Vernooij   +15 more
core   +1 more source

Factors Associated With the Dilation of Perivascular Space in Healthy Elderly Subjects

Frontiers in Aging Neuroscience, 2021
Background: The dilation of perivascular space (PVS) has been widely used to reflect brain degeneration in clinical brain imaging studies. However, PVS characteristics exhibit large differences in healthy subjects.
Peiyu Huang, Zili Zhu, Ruiting Zhang, Xiao Wu, Yeerfan Jiaerken, Shuyue Wang, Wenke Yu, Hui Hong, Chunfeng Lian, Kaicheng Li, Qingze Zeng, Xiao Luo, Xiaopei Xu, Xinfeng Yu, Yunjun Yang, Minming Zhang   +15 more
doaj   +1 more source

Perivascular Unit: This Must Be the Place. The Anatomical Crossroad Between the Immune, Vascular and Nervous System

Frontiers in Neuroanatomy, 2020
Most neurological disorders seemingly have heterogenous pathogenesis, with overlapping contribution of neuronal, immune and vascular mechanisms of brain injury.
Fernanda Troili, Virginia Cipollini, Marco Moci, Emanuele Morena, Miklos Palotai, Virginia Rinaldi, Carmela Romano, Giovanni Ristori, Franco Giubilei, Marco Salvetti, Marco Salvetti, Francesco Orzi, Charles R. G. Guttmann, Michele Cavallari   +13 more
doaj   +1 more source

Cerebral Venous Reflux and Dilated Basal Ganglia Perivascular Space in Hypertensive Intracerebral Hemorrhage [PDF]

Journal of Stroke, 2022
Background and Purpose Cerebral venous flow alterations potentially contribute to age-related white matter changes, but their role in small vessel disease has not been investigated. Methods This study included 297 patients with hypertensive intracerebral
Hsin-Hsi Tsai, Bo-Ching Lee, Ya-Fang Chen, Jiann-Shing Jeng, Li-Kai Tsai   +4 more
doaj   +1 more source