Predicting Severe COVID-19 Infection on Initial Diagnosis: Comparison and Validation of CT Imaging Triage Tools

被引:0
作者
Kurban, Lutfi Ali S. [1 ,2 ]
Abu Sa'a, Maysam [1 ]
Farghal, Aser Soliman Ahmed [1 ]
Ali, Hussain Ali Aby [1 ]
Syed, Rizwan [1 ]
Al Zwae, Khaled [1 ]
机构
[1] Tawam Hosp, Khalifa Ibn Zayed St, Al Ain, Abu Dhabi, U Arab Emirates
[2] Amer Hosp, Dept Med Imaging, Oud Metha, U Arab Emirates
关键词
CT; pneumonia; COVID-19; prediction; risk factors; CTSS; ACUTE RESPIRATORY SYNDROME;
D O I
10.2174/1573405619666230210143430
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Background Developing a reliable predictive tool of disease severity in COVID-19 infection is important to help triage patients and ensure the appropriate utilization of health-care resources. Objective To develop, validate, and compare three CT scoring systems (CTSS) to predict severe disease on initial diagnosis of COVID-19 infection. Methods One hundred and twenty and 80 symptomatic adults with confirmed COVID-19 infection who presented to emergency department were evaluated retrospectively in the primary and validation groups, respectively. All patients had non-contrast CT chest within 48 hours of admission. Three lobar-based CTSS were assessed and compared. The simple lobar system was based on the extent of pulmonary infiltration. Attenuation corrected lobar system (ACL) assigned further weighting factor based on attenuation of pulmonary infiltrates. Attenuation and volume-corrected lobar system incorporated further weighting factor based on proportional lobar volume. The total CT severity score (TSS) was calculated by adding individual lobar scores. The disease severity assessment was based on Chinese National Health Commission guidelines. Disease severity discrimination was assessed by the area under the receiver operating characteristic curve (AUC). Results The ACL CTSS demonstrated the best predictive and consistent accuracy of disease severity with an AUC of 0.93(95%CI:0.88-0.97) in the primary cohort and 0.97 (95%CI:0.91.5-1) in the validation group. Applying a TSS cut-off value of 9.25, the sensitivities were 96.4% and 100% and the specificities were 75% and 91% in the primary and validation groups, respectively. Conclusion The ACL CTSS showed the highest accuracy and consistency in predicting severe disease on initial diagnosis of COVID-19. This scoring system may provide frontline physicians with a triage tool to guide admission, discharge, and early detection of severe illness.
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页码:1533 / 1540
页数:8
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