Chest CT in COVID-19 pneumonia: a correlation of lung abnormalities with duration and severity of symptoms

Chest CT in COVID-19 pneumonia: a correlation of lung abnormalities with duration and severity of symptoms

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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 Scullcap 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 Ribose the duration more than the severity of symptoms.