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Combining Initial Radiographs and Clinical Variables Improves Deep Learning Prognostication in Patients with COVID-19 from the Emergency Department
Radiology Artificial intelligence ; 3(2):e200098, 2021.
Article in English | MEDLINE | ID: covidwho-1208646
ABSTRACT

Purpose:

To train a deep learning classification algorithm to predict chest radiograph severity scores and clinical outcomes in patients with coronavirus disease 2019 (COVID-19). Materials and

Methods:

In this retrospective cohort study, patients aged 21-50 years who presented to the emergency department (ED) of a multicenter urban health system from March 10 to 26, 2020, with COVID-19 confirmation at real-time reverse-transcription polymerase chain reaction screening were identified. The initial chest radiographs, clinical variables, and outcomes, including admission, intubation, and survival, were collected within 30 days (n = 338;median age, 39 years;210 men). Two fellowship-trained cardiothoracic radiologists examined chest radiographs for opacities and assigned a clinically validated severity score. A deep learning algorithm was trained to predict outcomes on a holdout test set composed of patients with confirmed COVID-19 who presented between March 27 and 29, 2020 (n = 161;median age, 60 years;98 men) for both younger (age range, 21-50 years;n = 51) and older (age >50 years, n = 110) populations. Bootstrapping was used to compute CIs.

Results:

The model trained on the chest radiograph severity score produced the following areas under the receiver operating characteristic curves (AUCs) 0.80 (95% CI 0.73, 0.88) for the chest radiograph severity score, 0.76 (95% CI 0.68, 0.84) for admission, 0.66 (95% CI 0.56, 0.75) for intubation, and 0.59 (95% CI 0.49, 0.69) for death. The model trained on clinical variables produced an AUC of 0.64 (95% CI 0.55, 0.73) for intubation and an AUC of 0.59 (95% CI 0.50, 0.68) for death. Combining chest radiography and clinical variables increased the AUC of intubation and death to 0.88 (95% CI 0.79, 0.96) and 0.82 (95% CI 0.72, 0.91), respectively.

Conclusion:

The combination of imaging and clinical information improves outcome predictions. Supplemental material is available for this article.© RSNA, 2020.

Full text: Available Collection: Databases of international organizations Database: MEDLINE Type of study: Prognostic study Language: English Journal: Radiology Artificial intelligence Year: 2021 Document Type: Article

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Full text: Available Collection: Databases of international organizations Database: MEDLINE Type of study: Prognostic study Language: English Journal: Radiology Artificial intelligence Year: 2021 Document Type: Article