Evidence map›Paper›PMID 29947813›Full record

Trial reportClinical neuroradiology2019

Susceptibility Vessel Sign and Cardioembolic Etiology in the THRACE Trial.

Romain Bourcier, Imad Derraz, Béatrice Delasalle, Marine Beaumont, Sebastien Soize, Laurence Legrand, Hubert Desal, Serge Bracard, Olivier Naggara, Catherine Oppenheim and 1 more

Abstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Susceptibility vessel sign in patients with subacute ischemic stroke.Quantitative imaging in medicine and surgery · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. [Susceptibility vessel sign in subacute stroke patients with large vessel occlusion].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2021
    Article
  10. Article
  11. Article
  12. Observational
  13. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Romain BourcierDepartment of Diagnostic and Interventional Neuroradiology, Guillaume et René Laennec University Hospital, Nantes, France. Romain.bourcier2@gmail.com.ORCID http://orcid.org/0000-0002-6506-4019
Imad DerrazDepartment of Diagnostic and Interventional Neuroradiology, University Hospital of Montpellier, Montpellier, France.
Béatrice DelasalleL'institut du thorax, Centre Hospitalier Universitaire Nantes, Nantes, France.
Marine BeaumontCIC1433, INSERM, Université de Lorraine, Nancy, France.
Sebastien SoizeDepartment of Diagnostic and Interventional Neuroradiology, University Hospital of Reims, Reims, France.
Laurence LegrandDepartment of Neuroradiology, Université Paris-Descartes, Paris, France.
Hubert DesalDepartment of Diagnostic and Interventional Neuroradiology, Guillaume et René Laennec University Hospital, Nantes, France.
Serge BracardDepartment of Diagnostic and Interventional Neuroradiology, University Hospital of Montpellier, Montpellier, France.
Olivier NaggaraDepartment of Neuroradiology, Université Paris-Descartes, Paris, France.
Catherine OppenheimDepartment of Neuroradiology, Université Paris-Descartes, Paris, France.
THRACE investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe susceptibility vessel sign (SVS) has been described on gradient echo (GRE) magnetic resonance imaging (MRI) in acute ischemic stroke patients by large vessel occlusion. The presence of SVS (SVS+) was associated with treatment outcome and stroke etiology with conflicting results. Based on multicenter data from the THRombectomie des Artères CErebrales (THRACE) study, we aimed to determine if the association between SVS and cardioembolic etiology (CE) was independent of GRE sequence parameters. MATERIAL AND

methodsPatients with a pretreatment brain GRE sequence were identified. Logistic regression tested the association between SVS+, CE, time from onset to imaging and GRE sequence parameters (e.g. echo time, voxel size, field strength). We calculated the sensitivity, specificity, positive and negative predictive values (PPV and NPV) for the SVS to predict a stroke from a CE.

resultsAn SVS+ was observed in 237 out of 287 (83%) patients. In the univariate analysis, there was a significant association between SVS+ and a CE with an odds ratio (OR) and 95% confidence interval (95% CI) of 2.10 (1.02-4.29), respectively (p = 0.04) but not with GRE sequence parameters. In multivariate analysis, there was an independent relationship between SVS+ and CE (OR [95% CI]: 2.14 [1.02-4.45], p = 0.04). Sensitivity and specificity of SVS+ to predict CE were 0.89 and 0.21, respectively. The PPV and NPV of SVS+ were 0.44 and 0.78, respectively.

conclusionThe presence of SVS is associated to CE, independent of GRE sequence parameters. While the specificity and the PPV of the sign were low, CE seems less likely in the absence of an SVS.

Indexed as

Acute DiseaseAgedBrain IschemiaCarotid Artery, InternalCoronary DiseaseEmbolismFemaleHumansMagnetic Resonance AngiographyMaleMiddle AgedMiddle Cerebral ArteryPredictive Value of TestsSensitivity and SpecificityStrokeIschemiaMagnetic resonance imagingThrombus

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.