Evidence map›Paper›PMID 31635531›Full record

ArticleJournal of telemedicine and telecare2021

Reliability and accuracy of individual Alberta Stroke Program Early CT Score regions using a medical and a smartphone reading system in a telestroke network.

Antonio J Salazar, Nicolás Useche, Manuel Granja, Sonia Bermúdez, Aníbal J Morillo, Oscar Torres, Natalia Rueda, Brenda Ropero

Abstract read
In one paragraph

Article in Journal of telemedicine and telecare, 2021. 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
–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

4 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Antonio J SalazarElectrophysiology and Telemedicine Laboratory, University of Los Andes, Colombia.ORCID https://orcid.org/0000-0003-2639-2340
Nicolás UsecheDepartment of Diagnostic Imaging, University Hospital Fundación Santa Fe de Bogotá, Colombia.ORCID https://orcid.org/0000-0001-8329-0565
Manuel GranjaBaptist Health, Lyerly Neurosurgery, USA.
Sonia BermúdezDepartment of Diagnostic Imaging, University Hospital Fundación Santa Fe de Bogotá, Colombia.
Aníbal J MorilloDepartment of Diagnostic Imaging, University Hospital Fundación Santa Fe de Bogotá, Colombia.
Oscar TorresDepartment of Diagnostic Imaging, University Hospital Fundación Santa Fe de Bogotá, Colombia.
Natalia RuedaDepartment of Diagnostic Imaging, University Hospital Fundación Santa Fe de Bogotá, Colombia.
Brenda RoperoElectrophysiology and Telemedicine Laboratory, University of Los Andes, Colombia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim of this study was to assess individual regions of the Alberta Stroke Program Early CT Score in noncontrast head computed tomography interpretations using a smartphone in a telestroke network, by comparison to a medical monitor.

methodsThe review board of our institution approved this retrospective study. A factorial design with 188 patients, four radiologists and two reading systems was used. Accuracy and reliability were evaluated.

resultsVery good interobserver agreements were observed on the total Alberta Stroke Program Early CT Score for both the medical and smartphone reading systems, with intraclass correlation coefficients of 0.91 and 0.84 respectively. Interobserver agreements were moderate to very good for the medical reading system (all intraclass correlation coefficients >0.74), whereas they were fair to very good for the smartphone (intraclass correlation coefficients ranged from 0.31-0.81). All intraobserver agreements were good (intraclass correlation coefficient >0.64), except for internal capsule (0.48) and M2 (0.55) regions. The areas under the receiver-operating curve ranged from 0.69-0.89 for the medical system, while for the smartphone ranged from 0.44-0.86. No statistical differences were observed between medical and smartphone reading systems for each region (all DISCUSSION: If radiologists are better trained in the evaluation of the lesions in the insula, the internal capsule and the M2 regions, the total and the dichotomised Alberta Stroke Program Early CT Score will be more precise. Hence, ruling out contraindications to thrombolysis administration will be improved, allowing assessment of head computed tomography in a telestroke network using a smartphone to be a common practice.

Indexed as

SmartphoneStrokeAlbertaHumansReadingReproducibility of ResultsRetrospective StudiesTomography, X-Ray ComputedAccuracyagreementAlberta Stroke Program Early CT Scoredisplaysreceiver-operating characteristicreliabilitysmartphonestroketelehealthtelestroke

Identifiers

PMID31635531
PMCPMC8366140

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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.