Evidence map›Paper›PMID 33384294›Full record

ArticleAJNR. American journal of neuroradiology2021

Evaluation of Artificial Intelligence-Powered Identification of Large-Vessel Occlusions in a Comprehensive Stroke Center.

A Yahav-Dovrat, M Saban, G Merhav, I Lankri, E Abergel, A Eran, D Tanne, R G Nogueira, R Sivan-Hoffmann

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 2 pooled it
7.6field-weighted citation impact, top 2% 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

55 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 3 countries.

A Yahav-DovratFrom the Department of Radiology (A.Y.-D., G.M., A.E., R.S.-H.).ORCID 0000-0002-5154-6076
M SabanFaculty of Social health and Welfare (M.S.), Haifa University, Haifa, Israel.ORCID 0000-0001-6869-0907
G MerhavFrom the Department of Radiology (A.Y.-D., G.M., A.E., R.S.-H.).ORCID 0000-0001-7211-5681
I LankriFaculty of Medicine (I.L.), Technion Israel institute of Technology, Haifa, Israel.ORCID 0000-0001-7169-516X
E AbergelUnit of Interventional Neuroradiology (E.A., R.S.-H.).ORCID 0000-0002-2954-623X
A EranFrom the Department of Radiology (A.Y.-D., G.M., A.E., R.S.-H.).ORCID 0000-0003-1439-7881
D TanneStroke and Cognition Institute (D.T.), Rambam Health Care Campus, Haifa, Israel.ORCID 0000-0002-6699-2220
R G NogueiraNeuroendovascular Service (R.G.N.), Marcus Stroke and Neuroscience Center Grady Memorial Hospital, Atlanta, Georgia.ORCID 0000-0003-4532-153X
R Sivan-HoffmannFrom the Department of Radiology (A.Y.-D., G.M., A.E., R.S.-H.) otemsivan3@gmail.com.ORCID 0000-0002-3757-7298
MACOM (United States) · USGrady Memorial Hospital · USRambam Health Care Campus · ILSociety of Interventional Radiology · USTechnion – Israel Institute of Technology · ILUniversity of Haifa · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeArtificial intelligence algorithms have the potential to become an important diagnostic tool to optimize stroke workflow. Viz LVO is a medical product leveraging a convolutional neural network designed to detect large-vessel occlusions on CTA scans and notify the treatment team within minutes via a dedicated mobile application. We aimed to evaluate the detection accuracy of the Viz LVO in real clinical practice at a comprehensive stroke center. MATERIALS AND

methodsViz LVO was installed for this study in a comprehensive stroke center. All consecutive head and neck CTAs performed from January 2018 to March 2019 were scanned by the algorithm for detection of large-vessel occlusions. The system results were compared with the formal reports of senior neuroradiologists used as ground truth for the presence of a large-vessel occlusion.

resultsA total of 1167 CTAs were included in the study. Of these, 404 were stroke protocols. Seventy-five (6.4%) patients had a large-vessel occlusion as ground truth; 61 were detected by the system. Sensitivity was 0.81, negative predictive value was 0.99, and accuracy was 0.94. In the stroke protocol subgroup, 72 (17.8%) of 404 patients had a large-vessel occlusion, with 59 identified by the system, showing a sensitivity of 0.82, negative predictive value of 0.96, and accuracy of 0.89.

conclusionsOur experience evaluating Viz LVO shows that the system has the potential for early identification of patients with stroke with large-vessel occlusions, hopefully improving future management and stroke care.

Indexed as

Mobile ApplicationsNeural Networks, ComputerAgedCerebrovascular DisordersComputed Tomography AngiographyFemaleHumansImage Interpretation, Computer-AssistedMaleMiddle AgedPredictive Value of TestsRetrospective StudiesStroke

Identifiers

PMID33384294
PMCPMC7872164
OpenAlexW3116932816

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.