RESUMEN
Objetivo. Comparación de los sistemas de datos e informes CO-RADS y COVID-RADS evaluando su confiabilidad (sensibilidad y especificidad).
Material y métodos. Estudio retrospectivo observacional, en el cual se evaluó expedientes con sospecha de COVID-19, utilizando estudio de tomografía de tórax simple y el sistema PACS del hospital CHMH, eliminando la variable interobservador, categorizando en ambos sistemas RADS por un solo observador.
Resultados. Se utilizó la tabla de contingencia 2 x 2 para valorar la sensibilidad y especificidad de ambas clasificaciones, obteniendo para CO-RADS una sensibilidad de 97%, especificidad 34%, valor predictivo positivo 87% y valor predictivo negativo 73%. COVID-RADS con sensibilidad 98%, especificidad 28%, valor predictivo positivo 86% y valor predictivo negativo 75%.
Conclusiones. Ambos sistemas presentaron una confiabilidad similar, siendo escasamente más específico el sistema CO-RADS.
ABSTRACT
Purpose. Comparison of the CO-RADS and COVID-RADS data and reporting systems evaluating their reliability (sensitivity and specificity).
Material and methods. Retrospective observational study, in which records with suspected COVID-19 were evaluated, using a simple chest tomography study and the PACS system of the CHMH hospital, eliminating the interobserver variable, categorizing in both RADS systems by a single observer.
Results. The 2 x 2 contingency table was used to assess the sensitivity and specificity of both classifications, obtaining for CO-RADS a sensitivity of 97%, specificity 34%, positive predictive value 87% and negative predictive value 73%. COVID-RADS with sensitivity 98%, specificity 28%, positive predictive value 86% and negative predictive value 75%.
Conclusions. Both systems presented similar reliability, the CO-RADS system being scarcely more specific.
