Dynamic changes on chest CT of COVID-19 patients with solitary pulmonary lesion in initial CT
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ORIGINAL ARTICLE
Dynamic changes on chest CT of COVID‑19 patients with solitary pulmonary lesion in initial CT Yuandi Zhuang1 · Liaoyi Lin1 · Xunhua Xu2 · Tianyi Xia1 · Huili Yu2 · Gangze Fu1 · Yunjun Yang1 · Meihao Wang1 · Houzhang Sun1 Received: 18 April 2020 / Accepted: 21 August 2020 © Japan Radiological Society 2020
Abstract Purpose To investigate the dynamic evolution of image features of COVID-19 patients appearing as a solitary lesion at initial chest CT scan. Materials and methods Twenty-two COVID-19 patients with solitary pulmonary lesion from three hospitals in China were enrolled from January 18, 2020 to March 18, 2020. The clinical feature and laboratory findings at first visit, as well as characteristics and dynamic evolution of chest CT images were analyzed. Among them, the CT score evaluation was the sum of the lung involvement in five lobes (0–5 points for each lobe, with a total score ranging from 0 to 25). Results 22 COVID-19 patients (11 males and 11 females, with an average age of 40.7 ± 10.3) developed a solitary pulmonary lesion within 4 days after the onset of symptoms, the peak time of CT score was about 11 days (with a median CT score of 6), and was discharged about 19 days. The peak of CT score was positively correlated with the peak time and the discharge time (p
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