Results 121 to 130 of about 1,775 (137)

Abstract WP115: DWI/FLAIR Mismatch Is Common In Late Window Patients With Target Perfusion Mismatch

Stroke, 2023
Introduction: The presence of a DWI/FLAIR mismatch has been suggested as a method to identify patients within 4.5 hours from stroke symptom onset. We studied patients from DEFUSE 2 and 3 with the target perfusion mismatch profile to evaluate the rates of DWI/FLAIR mismatch in patients with who have favorable collaterals in ...
Diana Slawski, Greg Albers
openaire   +1 more source

Abstract TP97: Automated Assessment Of DWI-FLAIR Mismatch To Predict Stroke-onset Time

Stroke, 2023
Background and Purpose: DWI-FLAIR mismatch is used to determine thrombolytic eligibility in patients with acute ischemic stroke (AIS) when time-to-stroke symptom (TSS) is unknown. Advances in artificial intelligence and machine learning (ML) techniques have shown promising results in automated assessment of TSS. We aimed to use
Elham Tavakkol, Shingo Kihira, Mark McArthur, Phoebe Ann, Jennifer Polson, Haoyue Zhang, Corey Arnold, Bryan Yoo, Michael Linetsky, Luke Ledbetter, Noriko Salamon, Reza Jahan, Gary Duckwiler, Jeffrey L Saver, David S Liebeskind, Kambiz Nael   +15 more
openaire   +1 more source

The Effects of DWI‐Infarct Lesion Volume on DWI‐FLAIR Mismatch: Is There a Need for Size Stratification?

Journal of Neuroimaging, 2016
ABSTRACTBACKGROUNDThe lack of fluid‐attenuated inversion‐recovery (FLAIR) hyperintensity in areas of diffusion‐weighted imaging (DWI) high signal, or DWI‐FLAIR mismatch, is a potential imaging biomarker for timing of stroke onset. We aimed to determine the effects of DWI infarct lesion volume on DWI‐FLAIR mismatch and its accuracy for identification of
Seyedmehdi, Payabvash, Shayandokht, Taleb, John C, Benson, Jeffrey B, Rykken, Mark C, Oswood, Alexander M, McKinney, Benjamin, Hoffman   +6 more
openaire   +2 more sources

Collateral circulation assessment within the 4.5 h time window in patients with and without DWI/FLAIR MRI mismatch

Journal of the Neurological Sciences, 2018
The aim of the present study was to assess the association between collateral status and DWI-FLAIR mismatch in patients with acute ischemic stroke within the 4.5 h time-window.We analysed DWI, FLAIR, and PWI data in patients within 4.5 h after symptom onset from the I-KNOW European database.
Yves Berthezène, Omer Eker, Nikolaos Makris, Maxime Bettan, Adeline Mansuy, Aurélie Chabrol, Irene K. Mikkelsenm, Marc Hermier, Laura Mechtouff, Elodie Ong, Laurent Derex, Lise-Prune Berner, Roxana Ameli, Salvador Pedraza, Gotz Thomalla, Leif Østergaard, Jean-Claude Baron, Tae-Hee Cho, Norbert Nighoghossian   +18 more
openaire   +3 more sources

Abstract TP69: Association Between DWI-FLAIR Mismatch and Functional Outcomes in Patients Undergoing Mechanical Thrombectomy

Stroke, 2020
Background and Purpose: Diffusion weighted imaging-fluid attenuated inversion recovery (DWI-FLAIR) mismatch was well recognized as an early sign of acute ischemic stroke lesions. In the era of mechanical thrombectomy (MT), DWI-FLAIR mismatch could be a good marker for candidates of MT.
Fumihiro Sakakibara, Kazutaka Uchida, Soichiro Numa, Shinichi Yoshimura, Takeshi Morimoto   +4 more
openaire   +1 more source

Abstract P315: Radiomics Signature of DWI-FLAIR Mismatch Correlates With Clinical Phenotype of Patients With Large Vessel Occlusion Stroke

Stroke, 2021
Introduction: For patients presenting with large vessel occlusion for endovascular thrombectomy (EVT), FLAIR hyperintensity within ischemic lesions may be inversely related to parenchymal viability but relies on subjective grading.
Robert W Regenhardt, Martin Bretzner, Anna K Bonkhoff, Maria Clara Zanon Zotin, Mark R Etherton, Alvin S Das, Naif M Alotaibi, Justin E Vranic, Gregory Kuchcinski, Christopher J Stapleton, Aman B Patel, Thabele M Leslie-Mazwi, Natalia S Rost   +12 more
openaire   +1 more source

Clinical-Radiological Parameters Improve the Prediction of the Thrombolysis Time Window by Both MRI Signal Intensities and DWI-FLAIR Mismatch

Cerebrovascular Diseases, 2016
<b><i>Background:</i></b> With regard to acute stroke, patients with unknown time from stroke onset are not eligible for thrombolysis. Quantitative diffusion weighted imaging (DWI) and fluid attenuated inversion recovery (FLAIR) MRI relative signal intensity (rSI) biomarkers have been introduced to predict eligibility for ...
Vince Istvan Madai, Carla N. Wood, Ivana Galinovic, Ulrike Grittner, Sophie K. Piper, Gajanan S. Revankar, Steve Z. Martin, Olivier Zaro-Weber, Walter Moeller-Hartmann, Federico C. von Samson-Himmelstjerna, Wolf-Dieter Heiss, Martin Ebinger, Jochen B. Fiebach, Jan Sobesky   +13 more
openaire   +3 more sources

Une signature radiomique du mismatch dwi-flair dans l'avc ischémique.

Journal of Neuroradiology, 2022
Martin Bretzner, Robert Regenhardt, Maria Clara Zanon Zotin, Anna Bonkhoff, Mark Etherton, Sungmin Hong, Alvin Das, Naif Alotabi, Justin Vranic, Adam Dmytriw, Christopher Stapleton, Aman Patel, Grégory Kuchcinski, Natalia Rost, Thabele Leslie-Mazwi   +14 more
openaire   +1 more source

Judgment of FLAIR signal change in DWI–FLAIR mismatch determination is a challenge to clinicians

Journal of Neurology, 2011
Annerose, Ziegler, Martin, Ebinger, Jochen B, Fiebach, Heinrich J, Audebert, Stefanie, Leistner   +4 more
openaire   +2 more sources

How to Implement a Protocol Based Off DWI/FLAIR Mismatch to Treat Wake-Up Strokes at a Community Hospital (1780)

Neurology, 2021
Trevor Barton, Alicia Bennett, Kathryn McCarthy, Amy Nieberlein, Cailly Haning, Corissa Hebb, Jasmine Johann, Jeffrey Wagner   +7 more
openaire   +1 more source