Evidence map›Paper›PMID 33353381›Full record

SynthesisThe British journal of radiology2021

A systematic review and meta-analysis comparing the diagnostic accuracy of initial RT-PCR and CT scan in suspected COVID-19 patients.

Manish Devendra Mair, Mohammed Hussain, Saad Siddiqui, Sudip Das, Andrew Baker, Peter Conboy, Theodoros Valsamakis, Javed Uddin, Peter Rea

Open access · greenAbstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in The British journal of radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
3.9field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  4. Article
  5. Is it necessary to define new diagnostic reference levels during pandemics like the Covid19-?Radiation physics and chemistry (Oxford, England : 1993) · 2023
    Article
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  7. COVID-19 diagnostics: Molecular biology to nanomaterials.Clinica chimica acta; international journal of clinical chemistry · 2023
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  19. Diagnostic performance of the RSNA-proposed classification for COVID-19 pneumonia versus pre-pandemic controls.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    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

9 authors at 1 institution in 1 country.

Manish Devendra MairDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.ORCID https://orcid.org/0000-0003-3957-2738
Mohammed HussainDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Saad SiddiquiDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Sudip DasDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Andrew BakerDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Peter ConboyDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Theodoros ValsamakisDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Javed UddinDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Peter ReaDepartment of Otorhinolaryngology, University Hospital of Leicester, Leicester, UK.
Leicester General Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo perform a systematic review and meta-analysis to compare the diagnostic accuracy of CT and initial reverse transcriptase polymerase chain reaction (RT-PCR) for detecting COVID-19 infection.

methodsWe searched three databases, PubMed, EMBASE, and EMCARE, to identify studies reporting diagnostic accuracy of both CT and RT-PCR in detecting COVID-19 infection between December 2019 and May 2020. For accurate comparison, only those studies that had patients undergoing both CT and RT-PCR were included. Pooled diagnostic accuracy of both the tests was calculated by using a bivariate random effects model.

resultsBased on inclusion criteria, only 11 studies consisting of 1834 patients were included in the final analysis that reported diagnostic accuracy of both CT and RT-PCR, in the same set of patients. Sensitivity estimates for CT scan ranged from 0.69 to 1.00 and for RT-PCR varied ranging from 0.47 to 1.00. The pooled estimates of sensitivity for CT and RT-PCR were 0.91 [95% CI (0.84-0.97)] and 0.84 [95% CI (0.71-0.94)], respectively. On subgroup analysis, pooled sensitivity of CT and RT-PCR was 0.95 [95% CI (0.88-0.98)] and 0.91 [95% CI (0.80-0.96),

conclusionCT is more sensitive than RT-PCR in detecting COVID-19 infection, but has a very low specificity. ADVANCES IN KNOWLEDGE: Since the results of a CT scan are available quickly, it can be used as an adjunctive initial diagnostic test for patients with a history of positive contact or epidemiological history.

Indexed as

COVID-19COVID-19 TestingHumansPneumonia, ViralReverse Transcriptase Polymerase Chain ReactionSARS-CoV-2Tomography, X-Ray Computed

Identifiers

PMID33353381
PMCPMC8011239
OpenAlexW3114171415

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.