Bibliographic citations
Arenas, A., Orrego, E. (2024). Uso de la Tomografía Computarizada de tórax como prueba diagnóstica en pacientes sospechosos de neumonía por COVID-19 en una clínica privada de Lima, Perú en el año 2020 [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/672049
Arenas, A., Orrego, E. Uso de la Tomografía Computarizada de tórax como prueba diagnóstica en pacientes sospechosos de neumonía por COVID-19 en una clínica privada de Lima, Perú en el año 2020 [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2024. http://hdl.handle.net/10757/672049
@misc{renati/413900,
title = "Uso de la Tomografía Computarizada de tórax como prueba diagnóstica en pacientes sospechosos de neumonía por COVID-19 en una clínica privada de Lima, Perú en el año 2020",
author = "Orrego Silva, Eva Jimena",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2024"
}
Objective: To evaluate the use of chest Computed Tomography (CT) as a diagnostic test in patients suspected of COVID-19 pneumonia in a private clinic in Lima, Peru in the year 2020. Methods: A retrospective study of diagnostic accuracy, which included by census 623 patients who were admitted for Respiratory Emergency of a private clinic in Lima, Peru between March and December of 2020, and had a RT-PCR result for SARS-CoV-2 and chest CT report, the latter being classified as positive for lung involvement by COVID-19 if it met the criteria of CO-RADS’ categories 4 and 5. We evaluated the sensitivity, specificity, PPV and NPV of chest CT compared to RT-PCR for SARS- CoV-2 for the diagnosis of COVID-19. Results: With the total sample, Chest CT was found to have a sensitivity of 89.4% (95%CI 87.0;91.8), specificity of 71.5% (95%CI 68.0;75.1), accuracy of 82.3% (95%CI 79.2;85.1), PPV of 82.8% (95%CI 79.8;85.8) and NPV of 81.5% (95%CI 78.4;84.5). In addition, it was observed that the test in adults aged 60 years and older had a higher sensitivity [96.3% (95%CI 93.4;99.2)], compared to adults younger than 60 years [86.5% (95%CI 83.3;89.6)]. Conclusion: Chest CT has a high sensitivity for the diagnosis of COVID-19. The greatest purpose of chest CT would be to rule out the disease in suspicious patients and to obtain its results quickly; however, its high cost, the availability of CT scanners and radiological specialists trained to interpret it should be taken into consideration.
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