Diagnostic performance and interobserver agreement of CO-RADS: evaluation of classification in radiology practice   
Yazarlar (7)
Okan Dilek
Sağlık Bilimleri Üniversitesi, Türkiye
Ömer Kaya
Çukurova Üniversitesi, Türkiye
Hüseyin Akkaya
T.C. Sağlık Bakanlığı, Türkiye
Cem Ceylan
Sağlık Bilimleri Üniversitesi, Türkiye
Betül Şahin Eker
Türkiye
Bozkurt Gülek
Sağlık Bilimleri Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Diagnostic and Interventional Radiology
Dergi ISSN 1305-3612 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 09-2021
Cilt No 27
Sayı 5
Sayfalar 615 / 620
DOI Numarası 10.5152/dir.2021.201032
Makale Linki http://dx.doi.org/10.5152/dir.2021.201032
Özet
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.
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