Results 31 to 40 of about 1,775 (137)
Journal of Central Nervous System Disease, 2020 Background: T 2 relaxation-based magnetic resonance imaging (MRI) signals may provide onset time for acute ischemic strokes with an unknown onset. The ability of visual and quantitative MRI-based methods in a cohort of hyperacute ischemic stroke patients
Bryony L McGarry +10 more
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Lesion Age Imaging in Acute Stroke: Water Uptake in
Annals of Neurology, 2020 PurposeIn acute ischemic stroke with unknown time of onset, magnetic resonance (MR)‐based diffusion‐weighted imaging (DWI) and fluid‐attenuated inversion recovery (FLAIR) estimates lesion age to guide intravenous thrombolysis. Computed tomography (CT)‐based quantitative net water uptake (NWU) may be a potential alternative.
Gabriel Broocks +11 more
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IV t-PA influences infarct volume in minor stroke: a pilot study. [PDF]
PLoS ONE, 2014 There is an ongoing debate whether stroke patients presenting with minor or moderate symptoms benefit from thrombolysis. Up until now, stroke severity on admission is typically measured with the NIHSS, and subsequently used for treatment decision.Acute ...
Kersten Villringer +5 more
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Frontiers in Molecular Neuroscience, 2021 Ischemic stroke with a mismatch between diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) or T2-weighted images indicates onset within 4.5 h, but the pathological substrates in the DWI-T2 mismatch and T2(+) areas remain ...
Shin-Joe Yeh +14 more
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Frontiers in Neurology, 2019 Objective: Diffusion-weighted imaging (DWI)-Alberta Stroke Program Early CT Score (ASPECTS) is a simple, widely used method to estimate the size of the infarct.
Lei Song +10 more
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Insights into Imaging, 2020 Objectives Asymmetrically prominent veins (APVs) detected on susceptibility weighted imaging (SWI) in acute stroke patients are assumed to signify compromised cerebral perfusion.
Eman A. F. Darwish +2 more
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European Journal of Radiology Open, 2023 Background: The evaluation of DWI/FLAIR mismatch in ischaemic stroke patients with unknown, time from onset can determine the treatment strategy. This approach is based on, visual assessment and may be subject to insufficient inter-rater agreement ...
J. Civrny +8 more
doaj +1 more source
Stroke and Vascular Neurology, 2019 Purpose Clinical trials have provided evidence that treating patients with acute ischaemic stroke (AIS) beyond 4.5 hours was feasible. Among them using MRI diffusion-weighted imaging/fluid attenuation inversion response (DWI/FLAIR) mismatch to guide ...
Qing-ke Bai +9 more
doaj +1 more source
Zhongguo cuzhong zazhi在急性缺血性卒中（acute ischemic stroke，AIS）中，DWI-FLAIR不匹配是指MRI DWI序列上显示有急性梗死病灶（呈现高信号），而对应的FLAIR序列显示该区域呈等信号的一种影像学表现。DWI-FLAIR不匹配反映了梗死核心（不可逆损伤区）与缺血半暗带（潜在可挽救区）在空间分布上的差异。近年来研究表明，基于DWI-FLAIR不匹配的缺血半暗带评估有助于筛选仍存在可挽救脑组织的AIS患者，为发病时间不明（如醒后卒中）的患者是否适宜接受再灌注治疗提供了重要的影像学依据 ...
李欢，于向明（LI Huan, YU Xiangming）
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FLAIR vascular hyperintensities and 4D MR angiograms for the estimation of collateral blood flow in anterior cerebral artery ischemia. [PDF]
PLoS ONE, 2017 PURPOSE:To assess FLAIR vascular hyperintensities (FVH) and dynamic (4D) angiograms derived from perfusion raw data as proposed magnetic resonance (MR) imaging markers of leptomeningeal collateral circulation in patients with ischemia in the territory of
Matthias Gawlitza +7 more
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