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Updated: Dec 29, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
CT Imaging Features of 2019 Novel Coronavirus (2019-nCoV)
Michael Chung1, Adam Bernheim1, Xueyan Mei1
1From the Department of Diagnostic, Molecular, and Interventional Radiology (M.C., A.B., M.H., Z.A.F., A.J.) and BioMedical Engineering and Imaging Institute (X.M., Y.Y., Z.A.F.), Icahn School of Medicine at Mount Sinai, New York, NY; Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, China (N.Z., X.Z.); Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China (J.C., W.X.); and Guangdong Provincial Key Laboratory of Biomedical Imaging, Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, 52 East Meihua Rd, New Xiangzhou, Zhuhai, Guangdong Province, China, 519000 (K.L., S.L., H.S.).
Abstract:
In this retrospective case series, chest CT scans of 21 symptomatic patients from China infected with the 2019 novel coronavirus (2019-nCoV) were reviewed, with emphasis on identifying and characterizing the most common findings. Typical CT findings included bilateral pulmonary parenchymal ground-glass and consolidative pulmonary opacities, sometimes with a rounded morphology and a peripheral lung distribution. Notably, lung cavitation, discrete pulmonary nodules, pleural effusions, and lymphadenopathy were absent. Follow-up imaging in a subset of patients during the study time window often demonstrated mild or moderate progression of disease, as manifested by increasing extent and density of lung opacities.
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