Evidence map›Paper›PMID 37036841›Full record

ArticlePloS one2023

Diagnostic accuracy of CT angiography and CT perfusion imaging for detecting distal medium vessel occlusions: Protocol for a systematic review and meta-analysis.

João André Sousa, Anton Sondermann, Sara Bernardo-Castro, Ricardo Varela, Helena Donato, João Sargento-Freitas

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Medium vessel occlusions in the drip-and-ship model: Clinical vs. hub CTP-supported decision making.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    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

6 authors at 3 institutions in 2 countries.

João André SousaNeurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.ORCID 0000-0002-5199-6210
Anton SondermannChristian-Albrechts-Universität zu Kiel, Kiel, Germany.
Sara Bernardo-CastroNeurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Ricardo VarelaNeurology Department, Centro Hospitalar e Universitário de Santo António, Porto, Portugal.ORCID 0000-0002-8072-1013
Helena DonatoDocumentation and Scientific Information Service, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
João Sargento-FreitasNeurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Hospitais da Universidade de Coimbra · PTChristian-Albrechts-Universität zu Kiel · DEHospital de Santo António · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDistal medium vessel occlusions (DMVOs) represent 25-40% of all acute ischemic strokes (AIS). DMVO clinical syndromes are heterogenous, but as eloquent brain regions are frequently involved, they are often disabling. Since current intravenous fibrinolytic therapies may fail to recanalize up to two-thirds of DMVOs, endovascular treatment is progressively being considered in this setting. Nevertheless, the optimal imaging method for diagnosis remains to be defined. Stroke centers that use computed tomography as a routine stroke imaging approach rely on either isolated computed tomography angiography (CTA) or combined perfusion (CTP) studies. Despite a simplified non-CTP-dependent approach seeming reasonable for large vessel occlusion AIS diagnosis, CTP may still hold advantages for DMVOs workup. Therefore, this systematic review aims to compare the diagnostic performance of CTA and CTP in detecting DMVOs.

methodsWe will perform a systematic search in PubMed, EMBASE, Web of Science Core Collection, and Cochrane Central Register of Controlled Trials. In addition, grey literature and ClinicalTrials.gov will be scanned. We will include any type of study that presents data on the diagnostic accuracy of CTA and/or CTP for detecting DMVOs. Two authors will independently review retrieved studies, and any discrepancies will be resolved by consensus or with a third reviewer. Reviewers will extract the data and assess the risk of bias in the selected studies. Data will be combined in a quantitative meta-analysis following the guidelines provided by the Cochrane Handbook for Systematic Reviews of Interventions. We will assess cumulative evidence using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. DISCUSSION: This will be the first systematic review and meta-analysis that compares two different imaging approaches for detecting DMVOs. This study may help to define optimal acute ischemic stroke imaging work-up.

trial registrationPROSPERO registration: CRD42022344006.

Indexed as

Ischemic StrokeStrokeComputed Tomography AngiographyHumansMeta-Analysis as TopicPerfusion ImagingSystematic Reviews as Topic

Identifiers

PMID37036841
PMCPMC10085008
OpenAlexW4362737864

What OpenQuestion holds

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LicenceCC BY
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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.