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Diagnostic performance and interobserver agreement of CO-RADS: evaluation of classification in radiology practice.
Dilek, Okan; Kaya, Omer; Akkaya, Hüseyin; Ceylan, Cem; Kiziloglu, Alper; Sahin Eker, Betul; Gulek, Bozkurt.
  • Dilek O; Department of Radiology, University of Health Sciences, Adana Teaching and Research Hospital, Adana, Turkey.
  • Kaya O; Department of Radiology, Cukurova University Faculty of Medicine, Adana, Trukey.
  • Akkaya H; Department of Radiology, Siverek City of Hospital, Sanliurfa, Turkey.
  • Ceylan C; Department of Radiology, University of Health Sciences, Adana Teaching and Research Hospital, Adana, Turkey.
  • Kiziloglu A; Department of Radiology, Develi City of Hospital, Kayseri, Turkey.
  • Sahin Eker B; Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences, Adana Teaching and Research Hospital, Adana, Turkey.
  • Gulek B; Department of Radiology, University of Health Sciences, Adana Teaching and Research Hospital, Adana, Turkey.
Diagn Interv Radiol ; 27(5): 615-620, 2021 Sep.
Article in English | MEDLINE | ID: covidwho-1329195
ABSTRACT

PURPOSE:

We aimed to evaluate the use of the COVID-19 reporting and data system (CO-RADS) among radiologists and the diagnostic performance of this system.

METHODS:

Four radiologists retrospectively evaluated the chest CT examinations of 178 patients. The study included 143 patients with positive reverse transcriptase-polymerase chain reaction (RT-PCR) test results and 35 patients whose RT-PCR tests were negative but whose clinical and/or radiological findings were consistent with COVID-19. Fleiss' kappa (κ) values were calculated, and individual observers' scores were compared. To investigate diagnostic efficiency, receiver operating characteristic (ROC) curves were calculated for each interpreter.

RESULTS:

The interpreters were in full agreement on 574 of 712 (80.6%) evaluations. The common Fleiss' κ value of all the radiologists combined was 0.712 (95% confidence interval [CI] 0.692-0.769). A reliable prediction on the basis of RT-PCR and clinical findings indicated the mean area under the curve (AUC) of Fleiss' κ value as 0.89 (95% CI 0.708-0.990). General interpreter agreement was found to range from moderate to good.

CONCLUSION:

The interpreter agreement for CO-RADS categories 1 and 5 was reasonably good. We conclude that this scoring system will make a valuable contribution to efforts in COVID-19 diagnosis. CO-RADS can also be of significant value for the diagnosis and treatment of the disease in cases with false-negative PCR results.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: Radiology / COVID-19 Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study Limits: Humans Language: English Journal: Diagn Interv Radiol Journal subject: Diagnostic Imaging / Radiology Year: 2021 Document Type: Article Affiliation country: Dir.2021.201032

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Radiology / COVID-19 Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study Limits: Humans Language: English Journal: Diagn Interv Radiol Journal subject: Diagnostic Imaging / Radiology Year: 2021 Document Type: Article Affiliation country: Dir.2021.201032