Evidence map›Paper›PMID 31076862›Full record

ArticleEuropean radiology2019

Automated versus manual imaging assessment of early ischemic changes in acute stroke: comparison of two software packages and expert consensus.

Friederike Austein, Fritz Wodarg, Nora Jürgensen, Monika Huhndorf, Johannes Meyne, Thomas Lindner, Olav Jansen, Naomi Larsen, Christian Riedel

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
4.0field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Effect of intravenous thrombolysis before endovascular therapy on outcomes in acute ischemic stroke with large core: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Pooled it
  3. Pooled it
  4. Article
  5. Article
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  7. Article
  8. Article
  9. Real-world evaluation of Brainomix e-Stroke software.Stroke and vascular neurology · 2024
    Article
  10. Article
  11. Article
  12. Machine learning and acute stroke imaging.Journal of neurointerventional surgery · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. e-ASPECTS software improves interobserver agreement and accuracy of interpretation of aspects score.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2021
    Article
  19. Review
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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 at 1 institution in 1 country.

Friederike AusteinDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany. friederike.austein@uksh.de.ORCID http://orcid.org/0000-0001-9104-3900
Fritz WodargDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Nora JürgensenDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Monika HuhndorfDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Johannes MeyneDepartment of Neurology, University Hospital, Schleswig-Holstein, Campus Kiel, Kiel, Germany.
Thomas LindnerDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Olav JansenDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Naomi LarsenDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Christian RiedelDepartment of Radiology and Neuroradiology, University Hospital, Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
University Hospital Schleswig-Holstein · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe purpose of our study was to compare the agreement of both the total Alberta Stroke Program Early CT Score (ASPECTS) and region-based scores from two automated ASPECTS software packages and an expert consensus (EC) reading with final ASPECTS in a selected cohort of patients who had prompt reperfusion from endovascular thrombectomy (EVT).

methodsASPECTS were retrospectively and blindly assessed by two software packages and EC on baseline non-contrast-enhanced computed tomography (NCCT) images. All patients had multimodal CT imaging including NCCT, CT angiography, and CT perfusion which demonstrated an acute anterior circulation ischemic stroke with a large vessel occlusion. Final ASPECTS on follow-up scans in patients who had EVT and achieved complete reperfusion within 100 min from NCCT served as ground truth and were compared to total and region-based scores.

resultsFifty-two patients met our study criteria. Moderate agreement was obtained between both software packages and EC for total ASPECTS and there was no significant difference in overall performance. However, the software packages differed with respect to regional contribution. In this cohort, the majority of infarcted regions were deep structures. Package A was more sensitive in cortical areas than the other methods, but at a cost of specificity. EC and software package B had greater sensitivity, but lower specificity for deep brain structures.

conclusionIn this cohort, using the final ASPECTS as ground truth, no clinically significant difference was observed for total ASPECT score between human or automated packages, but there were differences in the characteristics of the regions scored. KEY POINTS: • Some national stroke guidelines have incorporated ASPECTS in their recommendations for selecting patients for endovascular therapy. • Computer-aided diagnosis is a promising tool to aid the evaluation of early ischemic changes identified on CT. • Software packages for automated ASPECTS assessment differed significantly with respect to regional contribution without any significant difference in the overall ASPECT score.

Indexed as

Attitude of Health PersonnelBrain IschemiaComputed Tomography AngiographyDiagnosis, Computer-AssistedSoftwareStrokeTomography, X-Ray ComputedAgedAged, 80 and overCohort StudiesFemaleHumansMaleMiddle AgedMultimodal ImagingPractice Guidelines as TopicComputer assistedImage interpretationSoftware validationStrokeThrombectomy

Identifiers

PMID31076862
OpenAlexW2944368339

What OpenQuestion holds

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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.