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Salahuddin H, Saherwala A, Pinho MC, Moore W, Castonguay A, Khan NI, Jeelani F, Uppal H, He H, Campbell J, Shang T. Association of distal hyperintense vessel sign and recurrent stroke in patients with symptomatic intracranial stenosis. J Stroke Cerebrovasc Dis 2022; 31:106616. [PMID: 35816788 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/16/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE The distal hyperintense vessel sign (DHV) on fluid-attenuated inversion recovery magnetic resonance image (MRI) is an imaging biomarker of slow leptomeningeal collateral flow in the presence of large artery stenosis or occlusion reflecting impaired cerebral hemodynamics. In this study, we aim to investigate the significance of the DHV sign in patients with symptomatic ≥ 70% intracranial atherosclerotic stenosis. METHODS We retrospectively reviewed patients with ischemic stroke or transient ischemic attack admitted to a single center from January 2010 to December 2017. Patients were included if they had symptomatic ≥ 70% atherosclerotic stenosis of the intracranial internal carotid artery or middle cerebral artery. The presence of the DHV sign was evaluated by blinded neuroradiologist and vascular neurologists. Recurrent ischemic stroke in the vascular territory of symptomatic intracranial artery was defined as new neurological deficits with associated neuroimaging findings during the follow up period. RESULTS A total of 109 patients were included in the study, of which 55 had DHV sign. Average duration of follow up was 297 ± 326 days. Four patients were lost during follow up. Patients with the DHV sign had a higher rate of recurrent ischemic stroke (38%), compared to patients without the DHV sign (17%; p=0.018). In multivariate regression analysis, the presence of DHV sign was an independent predictor of recurrent ischemic stroke. A DHV score of ≥ 2 had a 63% sensitivity and 69% specificity for recurrent ischemic stroke. INTERPRETATION In patients with severe symptomatic intracranial atherosclerotic stenosis, those with a DHV sign on MRI are at higher risk of recurrent ischemic stroke.
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Affiliation(s)
- Hisham Salahuddin
- Department of Neurology, Antelope Valley Hospital, Los Angeles, CA USA; Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA; Department of Neurology, University of Toledo, Toledo, OH USA
| | - Ali Saherwala
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Marco C Pinho
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX USA.
| | - William Moore
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX USA.
| | | | - Nadeem I Khan
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Faraz Jeelani
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Hardeep Uppal
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA.
| | - Henry He
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA.
| | - Joel Campbell
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Ty Shang
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX USA.
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Grosch AS, Kufner A, Boutitie F, Cheng B, Ebinger M, Endres M, Fiebach JB, Fiehler J, Königsberg A, Lemmens R, Muir KW, Nighoghossian N, Pedraza S, Siemonsen CZ, Thijs V, Wouters A, Gerloff C, Thomalla G, Galinovic I. Extent of FLAIR Hyperintense Vessels May Modify Treatment Effect of Thrombolysis: A Post hoc Analysis of the WAKE-UP Trial. Front Neurol 2021; 11:623881. [PMID: 33613422 PMCID: PMC7890254 DOI: 10.3389/fneur.2020.623881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/29/2020] [Indexed: 11/21/2022] Open
Abstract
Background and Aims: Fluid-attenuated inversion recovery (FLAIR) hyperintense vessels (FHVs) on MRI are a radiological marker of vessel occlusion and indirect sign of collateral circulation. However, the clinical relevance is uncertain. We explored whether the extent of FHVs is associated with outcome and how FHVs modify treatment effect of thrombolysis in a subgroup of patients with confirmed unilateral vessel occlusion from the randomized controlled WAKE-UP trial. Methods: One hundred sixty-five patients were analyzed. Two blinded raters independently assessed the presence and extent of FHVs (defined as the number of slices with visible FHV multiplied by FLAIR slice thickness). Patients were then separated into two groups to distinguish between few and extensive FHVs (dichotomization at the median <30 or ≥30). Results: Here, 85% of all patients (n = 140) and 95% of middle cerebral artery (MCA) occlusion patients (n = 127) showed FHVs at baseline. Between MCA occlusion patients with few and extensive FHVs, no differences were identified in relative lesion growth (p = 0.971) and short-term [follow-up National Institutes of Health Stroke Scale (NIHSS) score; p = 0.342] or long-term functional recovery [modified Rankin Scale (mRS) <2 at 90 days poststroke; p = 0.607]. In linear regression analysis, baseline extent of FHV (defined as a continuous variable) was highly associated with volume of hypoperfused tissue (β = 2.161; 95% CI 0.96–3.36; p = 0.001). In multivariable regression analysis adjusted for treatment group, stroke severity, lesion volume, occlusion site, and recanalization, FHV did not modify functional recovery. However, in patients with few FHVs, the odds for good functional outcome (mRS) were increased in recombinant tissue plasminogen activator (rtPA) patients compared to those who received placebo [odds ratio (OR) = 5.3; 95% CI 1.2–24.0], whereas no apparent benefit was observed in patients with extensive FHVs (OR = 1.1; 95% CI 0.3–3.8), p-value for interaction was 0.11. Conclusion: While the extent of FHVs on baseline did not alter the evolution of stroke in terms of lesion progression or functional recovery, it may modify treatment effect and should therefore be considered relevant additional information in those patients who are eligible for intravenous thrombolysis. Clinical Trial Registration: Main trial (WAKE-UP): ClinicalTrials.gov, NCT01525290; and EudraCT, 2011-005906-32. Registered February 2, 2012.
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Affiliation(s)
- Anne Sophie Grosch
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Kufner
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Klinik und Hochschulambulanz für Neurologie, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Florent Boutitie
- Hospices Civils de Lyon, Service de Biostatistique, Lyon, France.,Université Lyon 1, Villeurbanne, France.,Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5558, Laboratoire de Biométrie et Biologie Evolutive, Equipe Biostatistique-Santé, Villeurbanne, France
| | - Bastian Cheng
- Department of Neurology, Head and Neurocenter, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Ebinger
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurology, Medical Park Berlin Humboldtmühle, Berlin, Germany
| | - Matthias Endres
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Klinik und Hochschulambulanz für Neurologie, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,German Centre for Cardiovascular Research (DZHK), Berlin, Germany.,German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany.,Excellence Cluster NeuroCure, Charite-Universitätsmedizin Berlin, Berlin, Germany
| | - Jochen B Fiebach
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alina Königsberg
- Department of Neurology, Head and Neurocenter, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Robin Lemmens
- Department of Neurology, University Hospitals Leuven, Leuven, Belgium.,Department of Neurosciences, Experimental Neurology, Katholieke Universiteit Leuven-University of Leuven, Leuven, Belgium.,Laboratory of Neurobiology, Center for Brain & Disease Research, Flanders Institute for Biotechnology, Leuven, Belgium
| | - Keith W Muir
- Institute of Neuroscience & Psychology, University of Glasgow, Glasgow, United Kingdom
| | - Norbert Nighoghossian
- Department of Stroke Medicine, Claude Bernard University Lyon 1, CREATIS National Center for Scientific Research Mixed Unit of Research 5220-National Institute of Health and Medical Research U1206, National Institute of Applied Sciences of Lyon, Lyon Civil Hospices, Lyon, France
| | - Salvador Pedraza
- Department of Radiology, Girona Institute of Biomedical Research, Institute of Diagnostic Imaging, Dr. Josep Trueta Hospital, Girona, Spain
| | - Claus Z Siemonsen
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Vincent Thijs
- Stroke Theme, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Heidelberg, VIC, Australia.,Department of Neurology, Austin Health, Heidelberg, VIC, Australia
| | - Anke Wouters
- Department of Neurology, University Hospitals Leuven, Leuven, Belgium.,Department of Neurosciences, Experimental Neurology, Katholieke Universiteit Leuven-University of Leuven, Leuven, Belgium.,Laboratory of Neurobiology, Center for Brain & Disease Research, Flanders Institute for Biotechnology, Leuven, Belgium
| | - Christian Gerloff
- Department of Neurology, Head and Neurocenter, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Götz Thomalla
- Department of Neurology, Head and Neurocenter, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ivana Galinovic
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
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Xu J, Chen X, Lin M. Significance of Magnetic Resonance Imaging (MRI) T2 Hyperintense Endo-Vessels Sign in Progressive Posterior Circulation Infarction. Med Sci Monit 2018; 24:3873-3881. [PMID: 29882523 PMCID: PMC6022782 DOI: 10.12659/msm.908300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background MRI FLAIR hyperintense vessels sign (FHVs) is a special imaging marker that plays a key role in acute infarction imaging and diagnosis. However, FHVs have not been studied in the context of progressive posterior circulation infarction (PPCI), and little is known about the association of hyperintense endo-vessels sign (HEVs) on transverse section MRI with infarction. Thus, our objective here was to investigate the clinical significance of transverse MRI T2 HEVs in patients with PPCI. Material/Methods In this retrospective, case-control study, we enrolled 100 consecutive posterior circulation infarction patients. All the patients underwent head MRI examinations on the onset day and the seventh day after admission. Neurologic deficits of the patients were assessed by the National Institutes of Health Stroke Scale (NIHSS) scores upon admission and after 7 days. Infarction volume on DWI was compared. Results HEVs were detected in 25 of 37 patients in the PPCI group (67.6%) and 22 of 63 patients in the NPPCI group (34.9%). Logistic regression analysis showed that the proportion of HEVs in the PPCI group was higher than in the NPPCI group (P=0.007). Among all the patients, HEVs were detected in 15 of 18 patients (83.3%) with occlusion of the vertebral artery or basilar artery, and 17 of 23 (73.9%) showed severe stenosis. The proportion of vertebrobasilar artery occlusions in the PPCI group was higher than in the NPPCI group (P<0.05). MRI DWI showed that 20 patients had cerebellum infarction among 23 vertebral artery HEVs patients, and 14 patients had brainstem infarction among 15 basilar artery HEVs patients. All of the 9 vertebral and basilar artery HEVs patients had brainstem infarction. The increase in NIHSS scores from baseline to 7 days was significantly greater in patients with HEVs than in patients without HEVs in the PPCI group (P=0.002). The expansion of the infarction size from baseline to 7 days was significantly larger in patients with HEVs than in patients without HEVs in the PPCI group (P=0.037). Conclusions HEVs are frequently detected in patients with vertebrobasilar artery territory infarction, and they can be considered as a special imaging marker for vertebral artery and basilar artery occlusion and severe stenosis. HEVs can indicate whether or not posterior circulation infarction progresses and they may be an independent risk factor of PPCI.
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Affiliation(s)
- Jialiang Xu
- Seventh Department of Neurology, Liaoning Province People's Hospital, Shenyang, Liaoning, China (mainland)
| | - Xiaohong Chen
- Seventh Department of Neurology, Liaoning Province People's Hospital, Shenyang, Liaoning, China (mainland)
| | - Muhui Lin
- Seventh Department of Neurology, Liaoning Province People's Hospital, Shenyang, Liaoning, China (mainland)
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Gawlitza M, Böhme J, Maros M, Lobsien D, Michalski D, Groden C, Hoffmann KT, Förster A. FLAIR vascular hyperintensities and 4D MR angiograms for the estimation of collateral blood flow in anterior cerebral artery ischemia. PLoS One 2017; 12:e0172570. [PMID: 28234996 PMCID: PMC5325299 DOI: 10.1371/journal.pone.0172570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 01/23/2017] [Indexed: 11/18/2022] Open
Abstract
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 the anterior cerebral artery (ACA). METHODS Forty patients from two tertiary care university hospitals were included. Infarct volumes and perfusion deficits were manually measured on DWI images and TTP maps, respectively. FVH and collateral flow on 4D MR angiograms were assessed and graded as previously specified. RESULTS Forty-one hemispheres were affected. Mean DWI lesion volume was 8.2 (± 13.9; range 0-76.9) ml, mean TTP lesion volume was 24.5 (± 17.2, range 0-76.7) ml. FVH were observed in 26/41 (63.4%) hemispheres. Significant correlations were detected between FVH and TTP lesion volume (ρ = 0.4; P<0.01) absolute (ρ = 0.37; P<0.05) and relative mismatch volume (ρ = 0.35; P<0.05). The modified ASITN/SIR score correlated inversely with DWI lesion volume (ρ = -0.58; P<0.01) and positively with relative mismatch (ρ = 0.29; P< 0.05). ANOVA of the ASITN/SIR score revealed significant inter-group differences for DWI (P<0.001) and TTP lesion volumes (P<0.05). No correlation was observed between FVH scores and modified ASITH/SIR scores (ρ = -0.16; P = 0.32). CONCLUSIONS FVH and flow patterns on 4D MR angiograms are markers of perfusion deficits and tissue at risk. As both methods did not show a correlation between each other, they seem to provide complimentary instead of redundant information. Previously shown evidence for the meaning of these specific MR signs in internal carotid and middle cerebral artery stroke seems to be transferrable to ischemic stroke in the ACA territory.
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Affiliation(s)
- Matthias Gawlitza
- Department of Neuroradiology, University Hospital Leipzig, Leipzig, Germany
- * E-mail:
| | - Johannes Böhme
- Department of Neuroradiology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Maté Maros
- Department of Neuroradiology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Donald Lobsien
- Department of Neuroradiology, University Hospital Leipzig, Leipzig, Germany
| | - Dominik Michalski
- Department of Neurology, University Hospital Leipzig, Leipzig, Germany
| | - Christoph Groden
- Department of Neuroradiology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | | | - Alex Förster
- Department of Neuroradiology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
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LEE SH, SEO KD, KIM JH, SUH SH, AHN SJ, LEE KY. Correlation between Hyperintense Vessels on FLAIR Imaging and Arterial Circulation Time on Cerebral Angiography. Magn Reson Med Sci 2016; 15:105-10. [DOI: 10.2463/mrms.2015-0006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Seung Ha LEE
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Kwon Duk SEO
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Ji Hwa KIM
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Sang Hyun SUH
- Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine
- Severance Institute for Vascular and Metabolic Research, Yonsei University
| | - Sung Jun AHN
- Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Kyung-Yul LEE
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine
- Severance Institute for Vascular and Metabolic Research, Yonsei University
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