1. Chest CT in COVID-19 pneumonia: a correlation of lung abnormalities with duration and severity of symptoms
- Author
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Noha Yousef Amin Ali, Mohammed M. Dawoud, Hanan Ahmad Nagy, and Tamer Mahmoud Dawoud
- Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine ,medicine.medical_specialty ,Ground-glass opacity ,Coronavirus disease 2019 (COVID-19) ,lcsh:R895-920 ,Chest ct ,Disease ,macromolecular substances ,Correlation ,Late phase ,medicine ,Radiology, Nuclear Medicine and imaging ,Duration and severity ,COVID-19 pneumonia ,Computed tomography ,Lung ,business.industry ,Research ,medicine.disease ,respiratory tract diseases ,Coronavirus ,Pneumonia ,medicine.anatomical_structure ,PCR ,Radiology ,Early phase ,business - Abstract
Background After the spread of COVID-19 pneumonia, chest CT examination was used as a substantial non-invasive complement to RT-PCR for diagnosing and as a rapid screening tool when RT-PCR results are unavailable. Our study aimed at the analysis of the lung abnormalities detected by chest CT in COVID-19 pneumonia according to the severity and duration of symptoms. Results In the early phase (n = 60), 32 patients had negative CT findings and 28 patients had positive findings with a mean total lung severity score of 2.13. In the intermediate phase (n = 116), 4 patients had negative CT findings and 112 patients had positive findings with a mean total lung severity score of 16.08. In the late phase (n = 36), all patients had positive findings with a mean total lung severity score of 17.83. CT lung abnormalities were progressed on follow-up CT studies. We found a high total lung severity score in many patients with mild symptoms with a mean of 14.77 and a low total lung severity score in many patients with moderate to severe symptoms with a mean of 9.14. Conclusion Chest CT should be used as a routine examination for diagnosing COVID-19 pneumonia and follow-up of disease advance. The progression of lung abnormalities was related to the duration more than the severity of symptoms.
- Published
- 2020