ISSN 1004-4140
CN 11-3017/P
Volume 29 Issue 4
Aug.  2020
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CHE Qinglin, GAO Yanjun, JI Xiaoxiao, JIA Rongrong, ZHANG Lang, BAI Weixian, LV Hairong. HRCT Ground-Glass Opacity Characteristics, Anatomy and Pathological Basis of COVID-19[J]. CT Theory and Applications, 2020, 29(4): 399-406. DOI: 10.15953/j.1004-4140.2020.29.04.02
Citation: CHE Qinglin, GAO Yanjun, JI Xiaoxiao, JIA Rongrong, ZHANG Lang, BAI Weixian, LV Hairong. HRCT Ground-Glass Opacity Characteristics, Anatomy and Pathological Basis of COVID-19[J]. CT Theory and Applications, 2020, 29(4): 399-406. DOI: 10.15953/j.1004-4140.2020.29.04.02
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HRCT Ground-Glass Opacity Characteristics, Anatomy and Pathological Basis of COVID-19

  • 1. Department of Radiology, Jingmen No. 1 People's Hospital, Jingmen 448000, China;

  • 2. Medical Imaging Center, The Affiliated Hospital of Northwest University (Xi'an No. 3 Hospital), Xi'an 710018, China

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  • Received Date: April 01, 2020
  • Available Online: November 10, 2021
    Graphical Abstract
    • Abstract
  • Objective:To summarize the characteristics of COVID-19 ground glass opacity(GGO) on HRCT, and to explore its anatomical and pathological basis.Methods:The HRCT imagings of 87 cases with COVID-19 were analyzed retrospectively and the characteristics of GGO were summed up. Results:A total of 255 GGO lesions were found, and their distribution characteristics were as follows:4 in the central region(1.57%), 120 in the peripheral region(47.06%), and 131 in the subpleural region(51.37%). The structural features of the lesions:48 lesions with paving stone signs(18.82%), and 191 lesions with small thickened blood vessels.The marginal features:96 lesions with arcuate indentations(37.65%) and 75 lesions with pleural traction signs(29.41%). Conclusion:The peripheral distribution of GGO is the typical HRCT manifestation of COVID-19, and paving stone sign, arcuate indentation sign and pleural traction sign are the manifestations of the lesion organization and fibrosis.
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