Background There is no consensus on the imaging modality to be used in the diagnosis and management of Coronavirus disease 2019 (COVID-19) pneumonia. The purpose of this study was to make a comparison between computed tomography (CT) and chest X-ray (CXR) through a scoring system that can be beneficial to the clinicians in making the triage of patients diagnosed with COVID-19 pneumonia at their initial presentation to the hospital. Results Patients with a negative CXR (30.1%) had significantly lower computed tomography score (CTS) ( p < 0.001). Among the lung zones where the only infiltration pattern was ground glass opacity (GGO) on CT images, the ratio of abnormality seen on CXRs was 21.6%. The cut-off value of X-ray score (XRS) to distinguish the patients who needed intensive care at follow-up ( n = 12) was 6 (AUC = 0.933, 95% CI = 0.886–0.979, 100% sensitivity, 81% specificity). Conclusions Computed tomography is more effective in the diagnosis of COVID-19 pneumonia at the initial presentation due to the ease detection of GGOs. However, a baseline CXR taken after admission to the hospital can be valuable in predicting patients to be monitored in the intensive care units.
【저자키워드】 COVID-19, Triage, tomography, x-rays, 【초록키워드】 Coronavirus disease 2019, intensive care, Pneumonia, hospital, Diagnosis, lung, Computed tomography, X-ray, sensitivity, specificity, intensive care units, management, Patient, chest X-ray, GGO, Follow-up, Admission, infiltration, CXR, AUC, scoring system, Ground glass opacity, Consensus, 95% CI, clinician, cut-off value, zone, abnormality, GGOs, significantly lower, effective, initial, Result, the patient, baseline, diagnosed with COVID-19, diagnosis of COVID-19, XRS, 【제목키워드】 Computed tomography, chest X-ray, scoring system, diagnosis of COVID-19,