Evidence map›Paper›PMID 34520246›Full record

ArticleThe British journal of radiology2021

Predicting clinical outcomes in COVID-19 using radiomics on chest radiographs.

Bino Abel Varghese, Heeseop Shin, Bhushan Desai, Ali Gholamrezanezhad, Xiaomeng Lei, Melissa Perkins, Assad Oberai, Neha Nanda, Steven Cen, Vinay Duddalwar

Abstract read
In one paragraph

Article 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 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. Radiomics analysis in medical imaging research.Journal of medical radiation sciences · 2023
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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

10 authors.

Bino Abel VargheseKeck School of Medicine, University of Southern California, CA, USA.
Heeseop ShinKeck School of Medicine, University of Southern California, CA, USA.
Bhushan DesaiKeck School of Medicine, University of Southern California, CA, USA.
Ali GholamrezanezhadKeck School of Medicine, University of Southern California, CA, USA.
Xiaomeng LeiKeck School of Medicine, University of Southern California, CA, USA.
Melissa PerkinsKeck School of Medicine, University of Southern California, CA, USA.
Assad OberaiViterbi School of Engineering, University of Southern California, Los Angeles, CA, USA.
Neha NandaKeck School of Medicine, University of Southern California, CA, USA.
Steven CenKeck School of Medicine, University of Southern California, CA, USA.
Vinay DuddalwarKeck School of Medicine, University of Southern California, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesFor optimal utilization of healthcare resources, there is a critical need for early identification of COVID-19 patients at risk of poor prognosis as defined by the need for intensive unit care and mechanical ventilation. We tested the feasibility of chest X-ray (CXR)-based radiomics metrics to develop machine-learning algorithms for predicting patients with poor outcomes.

methodsIn this Institutional Review Board (IRB) approved, Health Insurance Portability and Accountability Act (HIPAA) compliant, retrospective study, we evaluated CXRs performed around the time of admission from 167 COVID-19 patients. Of the 167 patients, 68 (40.72%) required intensive care during their stay, 45 (26.95%) required intubation, and 25 (14.97%) died. Lung opacities were manually segmented using ITK-SNAP (open-source software). CaPTk (open-source software) was used to perform 2D radiomics analysis.

resultsOf all the algorithms considered, the AdaBoost classifier performed the best with AUC = 0.72 to predict the need for intubation, AUC = 0.71 to predict death, and AUC = 0.61 to predict the need for admission to the intensive care unit (ICU). AdaBoost had similar performance with ElasticNet in predicting the need for admission to ICU. Analysis of the key radiomic metrics that drive model prediction and performance showed the importance of first-order texture metrics compared to other radiomics panel metrics. Using a Venn-diagram analysis, two first-order texture metrics and one second-order texture metric that consistently played an important role in driving model performance in all three outcome predictions were identified.

conclusionsConsidering the quantitative nature and reliability of radiomic metrics, they can be used prospectively as prognostic markers to individualize treatment plans for COVID-19 patients and also assist with healthcare resource management. ADVANCES IN KNOWLEDGE: We report on the performance of CXR-based imaging metrics extracted from RT-PCR positive COVID-19 patients at admission to develop machine-learning algorithms for predicting the need for ICU, the need for intubation, and mortality, respectively.

Indexed as

Machine LearningRadiography, ThoracicAdultAgedCOVID-19Critical CareEarly DiagnosisFemaleHealth Services Needs and DemandHumansMaleMiddle AgedPneumonia, ViralPredictive Value of TestsPrognosisRespiration, Artificial

Identifiers

PMID34520246
PMCPMC9328073

What OpenQuestion holds

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LicenceCC BY
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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.