Evidence map›Paper›PMID 31104586›Full record

ArticleThe neuroradiology journal2019

Systematic evaluation of computed tomography angiography collateral scores for estimation of long-term outcome after mechanical thrombectomy in acute ischaemic stroke.

Daniel Weiss, Bastian Kraus, Christian Rubbert, Marius Kaschner, Sebastian Jander, Michael Gliem, John-Ih Lee, Carl-Albrecht Haensch, Bernd Turowski, Julian Caspers

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in The neuroradiology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Predictive Value of RMedicina (Kaunas, Lithuania) · 2025
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  18. Research Trends and Hotspots of Collateral Circulation in Acute Ischemic Stroke: A Bibliometric Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
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

10 authors at 1 institution in 1 country.

Daniel Weiss1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.ORCID https://orcid.org/0000-0002-3118-7627
Bastian Kraus1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Christian Rubbert1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Marius Kaschner1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Sebastian Jander2 Medical Faculty, Department of Neurology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Michael Gliem2 Medical Faculty, Department of Neurology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
John-Ih Lee2 Medical Faculty, Department of Neurology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Carl-Albrecht Haensch3 Department of Neurology, Krankenhaus St Franziskus, Viersener Str. 450, 41063 Mönchengladbach, Germany.
Bernd Turowski1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Julian Caspers1 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Duesseldorf, Moorenstr. 5, 40225 Duesseldorf, Germany.
Heinrich Heine University Düsseldorf · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study compares computed tomography angiography-based collateral scoring systems in regard to their inter-rater reliability and potential to predict functional outcome after endovascular thrombectomy, and relates them to parenchymal perfusion as measured by computed tomography perfusion.

methodsEighty-four patients undergoing endovascular thrombectomy in anterior circulation ischaemic stroke were enrolled. Modified Tan Score, Miteff Score, Maas Score and Opercular Index Score ratio were assessed in pre-interventional computed tomography angiographies independently by two readers. Collateral scores were tested for inter-rater reliability by weighted-kappa, for correlations with three-months modified Rankin Scale, and their potential to differentiate between patients with favourable (modified Rankin Scale ≤2) and poor outcome (modified Rankin Scale ≥3). Correlations with relative cerebral blood volume and relative cerebral blood flow were tested in patients with available computed tomography perfusion.

resultsVery good inter-rater reliability was found for Modified Tan, Miteff and Opercular Index Score ratio, and substantial reliability for Maas. There were no significant correlations between collateral scores and three-months modified Rankin Scale, but significant group differences between patients with favourable and poor outcome for Maas, Miteff and Opercular Index Score ratio. Miteff and Maas were significant predictors of favourable outcome in binary logistic regression analysis. Miteff best differentiated between both outcome groups in receiver-operating characteristics, and Maas reached highest sensitivity for favourable outcome prediction of 96%. All collateral scores significantly correlated with mean relative cerebral blood volume and relative cerebral blood flow.

conclusionsComputed tomography angiography scores are valuable in estimating functional outcome after mechanical thrombectomy and reliable across readers. The more complex scores, Maas and Miteff, show the best performances in predicting favourable outcome.

Indexed as

AdultAgedAged, 80 and overBrain IschemiaCerebral AngiographyCollateral CirculationComputed Tomography AngiographyFemaleHumansMaleMechanical ThrombolysisMiddle AgedStrokeTreatment OutcomeCollateral scorescomputed tomography angiographycomputed tomography perfusionischaemic strokethrombectomy

Identifiers

PMID31104586
PMCPMC6639643
OpenAlexW2946575558

What OpenQuestion holds

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Registered trials

None linked

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.