Evidence map›Paper›PMID 31570065›Full record

ArticleInternational journal of stroke : official journal of the International Stroke Society2020

e-ASPECTS derived acute ischemic volumes on non-contrast-enhanced computed tomography images.

Simon Nagel, Olivier Joly, Johannes Pfaff, Panagiotis Papanagiotou, Klaus Fassbender, Wolfgang Reith, Markus A Möhlenbruch, Christian Herweh, Iris Q Grunwald

Abstract read
In one paragraph

Article in International journal of stroke : official journal of the International Stroke Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

  1. Pooled it
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  16. Deep learning-based identification of acute ischemic core and deficit from non-contrast CT and CTA.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
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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

9 authors.

Simon NagelDepartment of Neurology, University Hospital Heidelberg, Germany.ORCID 0000-0003-2471-6647
Olivier JolyBrainomix Ltd, Oxford, UK.
Johannes PfaffDepartment of Neuroradiology, University Hospital Heidelberg, Germany.
Panagiotis PapanagiotouDepartment of Neuroradiology, Central Hospital Bremen, Bremen, Germany.
Klaus FassbenderDepartment of Neurology, University of the Saarland, Homburg, Germany.ORCID 0000-0003-3596-868X
Wolfgang ReithDepartment of Neuroradiology, University of the Saarland, Homburg, Germany.
Markus A MöhlenbruchDepartment of Neuroradiology, University Hospital Heidelberg, Germany.
Christian HerwehDepartment of Neuroradiology, University Hospital Heidelberg, Germany.
Iris Q GrunwaldBrainomix Ltd, Oxford, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeValidation of automatically derived acute ischemic volumes (AAIV) from e-ASPECTS on non-contrast computed tomography (NCCT). MATERIALS AND

methodsData from three studies were reanalyzed with e-ASPECTS Version 7. AAIV was calculated in milliliters (ml) in all scored ASPECTS regions of the hemisphere detected by e-ASPECTS. The National Institute of Health Stroke Scale (NIHSS) determined stroke severity at baseline and clinical outcome was measured with the modified Rankin Scale (mRS) between 45 and 120 days. Spearman ranked correlation coefficients (R) of AAIV and e-ASPECTS scores with NIHSS and mRS as well as Pearson correlation of AAIV with diffusion-weighted imaging and CT perfusion-estimated ischemic "core" volumes were calculated. Multivariate regression analysis (odds ratio, OR with 95% confidence intervals, CI) and Bland-Altman plots were performed.

resultsWe included 388 patients. Mean AAIV was 11.6 ± 18.9 ml and e-ASPECTS was 9 (8-10: median and interquartile range). AAIV, respectively e-ASPECTS correlated with NIHSS at baseline (R = 0.35,

conclusionAAIV on NCCT correlated moderately with clinical severity but strongly with diffusion-weighted imaging lesion and computed tomography perfusion ischemic "core" volumes and predicted clinical outcome.

Indexed as

Brain IschemiaStrokeDiffusion Magnetic Resonance ImagingHumansTomography, X-Ray ComputedbiomarkerComputed tomographydiffusion-weightedimagingischemic strokeischemic volume

Identifiers

PMID31570065
PMCPMC7739116

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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.