Article ; Online: Diagnostic performance of the RSNA-proposed classification for COVID-19 pneumonia versus pre-pandemic controls.
2021 Volume 26, Issue 1, Page(s) 101665
Abstract: Objective: To evaluate the diagnostic accuracy of the Radiological Society of North America (RSNA) classification system for coronavirus disease 2019 (COVID-19) pneumonia compared to pre-pandemic chest computed tomography (CT) scan images to mitigate ... ...
| Abstract | Objective: To evaluate the diagnostic accuracy of the Radiological Society of North America (RSNA) classification system for coronavirus disease 2019 (COVID-19) pneumonia compared to pre-pandemic chest computed tomography (CT) scan images to mitigate the risk of bias regarding the reference standard. Materials and methods: This was a retrospective, cross-sectional, diagnostic test accuracy study. Chest CT scans, carried out from May 1 to June 30, 2020, and from May 1 to July 17, 2017, were consecutively selected for the COVID-19 (positive reverse transcription-polymerase chain reaction [RT-PCR] for severe acute respiratory syndrome coronavirus 2 result) and control (pre-pandemic) groups, respectively. Four expert thoracic radiologists blindly interpreted each CT scan image. Sensitivity and specificity were calculated. Results: A total of 160 chest CT scan images were included: 79 in the COVID-19 group (56 [43.5-67] years old, 41 men) and 81 in the control group (62 [52-72] years old, 44 men). Typically, an estimated specificity of 98.5% (95% confidence interval [CI] 98.1%-98.4%) was obtained. For the indeterminate classification as a diagnostic threshold, an estimated sensitivity of 88.3% (95% CI 84.7%-91.7%) and a specificity of 79.0% (95% CI 74.5%-83.4%), with an area under the curve of 0.865 (95% CI 0.838-0.895), were obtained. Conclusion: The RSNA classification system shows strong diagnostic accuracy for COVID-19 pneumonia, even against pre-pandemic controls. It can be an important aid in clinical decision-making, especially when a typical or indeterminate pattern is found, possibly advising retesting following an initial negative RT-PCR result and streamlining early management and isolation. |
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| MeSH term(s) | Adult ; Aged ; COVID-19 ; Cross-Sectional Studies ; Humans ; Lung ; Male ; Middle Aged ; Pandemics ; Pneumonia ; Retrospective Studies ; SARS-CoV-2 ; Sensitivity and Specificity | |||||
| Language | English | |||||
| Publishing date | 2021-12-18 | |||||
| Publishing country | Brazil | |||||
| Document type | Journal Article | |||||
| ZDB-ID | 2041400-6 | |||||
| ISSN | 1678-4391 ; 1413-8670 | |||||
| ISSN (online) | 1678-4391 | |||||
| ISSN | 1413-8670 | |||||
| DOI | 10.1016/j.bjid.2021.101665 | |||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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