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A head-to-head comparison of the intra- and interobserver agreement of COVID-RADS and CO-RADS grading systems in a population with high estimated prevalence of COVID-19 [Elektronski vir]Sushentsev, Nikita ...Objective: To evaluate the inter- and intraobserver agreement of COVID-RADS and CO-RADS reporting systems among differently experienced radiologists in a population with high estimated prevalence of ... COVID-19. Methods and materials: Chest CT scans of patients with clinically-epidemiologically diagnosed COVID-19 were retrieved from an open-source MosMedData data set, randomised, and independently assigned COVID-RADS and CO-RADS grades by an abdominal radiology fellow, thoracic imaging fellow and a consultant cardiothoracic radiologist. The inter- and intraobserver agreement of the two systems were assessed using the Fleiss' and Cohen's κ coefficients, respectively. Results: A total of 200 studies were included in the analysis. Both systems demonstrated moderate interobserver agreement, with κ values of 0.51 [95% confidence interval (CI): 0.46-0.56] and 0.55 (95% CI: 0.50-0.59) for COVID-RADS and CO-RADS, respectively. When COVID-RADS and CO-RADS grades were dichotomised at cut-off values of 2B and 4 to evaluate the agreement between grades representing different levels of clinical suspicion for COVID-19, the interobserver agreement became substantial with κ values of 0.74 (95% CI: 0.66-0.82) for COVID-RADS and 0.73 (95% CI: 0.65-0.81) for CO-RADS. The median intraobserver agreement was considerably higher for CO-RADS reaching 0.81 (95% CI: 0.43-0.76) compared with 0.60 (95% CI: 0.43-0.76) of COVID-RADS. Conclusions: COVID-RADS and CO-RADS showed comparable interobserver agreement, which was moderate when grades were compared head-to-head and substantial when grades were dichotomised to better reflect the underlying levels of suspicion for COVID-19. The median intraobserver agreement of CO-RADS was, however, considerably higher compared with COVID-RADS. Advances in knowledge: This paper provides a comprehensive review of the newly introduced COVID-19 chest CT reporting systems, which will help radiologists of all sub-specialties and experience levels make an informed decision on which system to use in their own practice.Source: BJR|open. - ISSN 2513-9878 (Vol. 2, no. 1, Jan. 2020, str. 1-20200053-8-20200053)Type of material - e-articlePublish date - 2020Language - englishCOBISS.SI-ID - 97811459
Author
Sushentsev, Nikita |
Bura, Vlad |
Kotnik, Maruša |
Shiryaev, Grigoriy |
Caglič, Iztok |
Weir-McCall, Jonathan |
Barrett, Tristan
Topics
covid-19 |
radioterapija |
epidemiologija |
covid-19 |
radiotherapy |
epidemiology
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Sushentsev, Nikita | |
Bura, Vlad | |
Kotnik, Maruša | |
Shiryaev, Grigoriy | |
Caglič, Iztok | 57398 |
Weir-McCall, Jonathan | |
Barrett, Tristan |
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