Results 31 to 40 of about 403,526 (143)

A Comparison of T Relaxation-Based MRI Stroke Timing Methods in Hyperacute Ischemic Stroke Patients: A Pilot Study

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, Robin A Damion, Isabel Chew, Michael J Knight, George WJ Harston, Davide Carone, Peter Jezzard, Amith Sitaram, Keith W Muir, Philip Clatworthy, Risto A Kauppinen   +10 more
doaj   +1 more source

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, Ulrike Grittner, Lars-Arne Schaafs, Christian H Nolte, Heinrich Audebert, Jochen B Fiebach   +5 more
doaj   +1 more source

Capping Protein Regulator and Myosin 1 Linker 3 (CARMIL3) as a Molecular Signature of Ischemic Neurons in the DWI-T2 Mismatch Areas After Stroke

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, Shin-Joe Yeh, Pang-Hung Hsu, Ti-Yen Yeh, Wei-Kang Yang, Ko-Ping Chang, Chien-Sung Chiang, Sung-Chun Tang, Li-Kai Tsai, Li-Kai Tsai, Jiann-Shing Jeng, Sung-Tsang Hsieh, Sung-Tsang Hsieh, Sung-Tsang Hsieh, Sung-Tsang Hsieh   +14 more
doaj   +1 more source

Diffusion-Weighted Imaging Fluid-Attenuated Inversion Recovery Mismatch on Portable, Low-Field Magnetic Resonance Imaging Among Acute Stroke Patients. [PDF]

Ann Neurol
Objective: For stroke patients with unknown time of onset, mismatch between diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) magnetic resonance imaging (MRI) can guide thrombolytic intervention. However, access to MRI for
Sorby-Adams A, Guo J, de Havenon A, Payabvash S, Sze G, Pinter NK, Jaikumar V, Siddiqui A, Baldassano S, Garcia-Guarniz AL, Zabinska J, Lalwani D, Peasley E, Goldstein JN, Nelson OK, Schaefer PW, Wira CR, Pitts J, Lee V, Muir KW, Nimjee SM, Kirsch J, Iglesias JE, Rosen MS, Sheth KN, Kimberly WT.   +25 more
europepmc   +2 more sources

Application of FLAIR Vascular Hyperintensity-DWI Mismatch in Ischemic Stroke Depending on Semi-Quantitative DWI-Alberta Stroke Program Early CT Score

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, Lei Song, Cui Lyu, Guiquan Shen, Tingting Guo, Jiangtao Wang, Wanbi Wang, Xiaoming Qiu, Alexander Lerner, Max Wintermark, Bo Gao   +10 more
doaj   +1 more source

Mapping the ischemic penumbra and predicting stroke progression in acute ischemic stroke: the overlooked role of susceptibility weighted imaging

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, Maha Abdelhameed-El-Nouby, Eman Geneidy   +2 more
doaj   +1 more source

Different mismatch concepts for MRI-guided thrombolysis in unknown onset stroke [PDF]

, 2020
Objective: To explore the prevalence of the perfusion‐weighted imaging (PWI) ‐ diffusion‐weighted imaging (DWI) mismatch and response to intravenous thrombolysis in the WAKE‐UP trial.
Ebinger, Martin, Götz Thomalla, Pedraza, Salvador, Gerloff, C., Bastian Cheng, Gerloff, Christian, Endres, M., Ebinger, M., Wouters, Anke, Dupont, P, Fiebach, Jochen B., for the WAKE‐UP Investigators,, Salvador Pedraza, Scheldeman, Lauranne, Christensen, Soren, Robin Lemmens, Thijs, Vincent, Fiebach, JB, Lauranne Scheldeman, Muir, KW, Nighoghossian, Norbert, Vincent Thijs, Anke Wouters, Simonsen, CZ, Fiebach, J. B., Lemmens, R., Thomalla, Goetz, Muir, K. W., Simonsen, Claus Z., Christensen, S, Lemmens, R, Claus Z. Simonsen, Muir, Keith W., Patrick Dupont, Nighoghossian, N, Gerloff, C, Dupont, P., Thomalla, Götz, Cheng, Bastian, Wouters, A, Thijs, V., Norbert Nighoghossian, Thomalla, G, Boutitie, Florent, Wouters, A., Matthias Endres, Keith W. Muir, Thomalla, G., Endres, M, Scheldeman, L, Lemmens, Robin, for the WAKE‐UP Investigators, Pedraza, S, Soren Christensen, Martin Ebinger, Thijs, V, Scheldeman, L., Boutitie, F., Christian Gerloff, Ebinger, M, Christensen, S., Boutitie, F, Simonsen, C. Z., Endres, Matthias, Florent Boutitie, Nighoghossian, N., Cheng, B., Jochen B. Fiebach, Cheng, B, Dupont, Patrick, Pedraza, S.   +70 more
core   +1 more source

Comparison of semi-quantitative and visual assessment of early MRI signal evolution in acute ischaemic stroke

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, Z. Sedlackova, T. Malenak, P. Kucera, D. Machal, M. Kocher, D. Sanak, T. Furst, M. Cerna   +8 more
doaj   +1 more source

Mismatch-based delayed thrombolysis: a meta-analysis [PDF]

, 2010
<p><b>Background and Purpose</b>: Clinical benefit from thrombolysis is reduced as stroke onset to treatment time increases. The use of "mismatch" imaging to identify patients for delayed treatment has face validity and has been used in
Lees, K.R., Mishra, N.K., Donnan, G.A., Furlan, A.J., Hacke, W.   +4 more
core   +1 more source

Synthetic FLAIR as a Substitute for FLAIR Sequence in Acute Ischemic Stroke

, 2022
International audienceBackground In acute ischemic stroke (AIS), fluid-attenuated inversion recovery (FLAIR) is used for treatment decisions when onset time is unknown.
Charron, Sylvain, Legrand, Laurence, Thirion, Bertrand, Turc, Guillaume, Baron, Jean-Claude, Deslys, Marc-Antoine, Naggara, Olivier, Oppenheim, Catherine, Hmeydia, Ghazi, Hassen, Wagih Ben, Benzakoun, Joseph, Debacker, Clément   +11 more
core   +1 more source