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Updated: Dec 15, 2025
Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
High-resolution computed tomography finding in 552 patients with symptomatic COVID-19: first report from north of
Hadi Majidi1, Elham-Sadat Bani-Mostafavi1, Zahra Mardanshahi1
1Department of Radiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
Insights
High-resolution computed tomography (HRCT) reveals common chest imaging findings in patients with coronavirus disease 2019 (COVID-19). Ground-glass opacity and peripheral distribution are key indicators for diagnosing COVID-19.
Area of Science:
- Radiology
- Infectious Diseases
- Pulmonology
Background:
- The emergence of coronavirus disease 2019 (COVID-19) necessitated rapid understanding of its clinical manifestations.
- Chest high-resolution computed tomography (HRCT) plays a crucial role in diagnosing and assessing COVID-19 pneumonia.
Purpose of the Study:
- To investigate the characteristic chest HRCT findings in patients diagnosed with COVID-19.
- To identify key imaging features that aid in the diagnosis of COVID-19.
Main Methods:
- A cross-sectional study involving 552 symptomatic COVID-19 patients referred for CT scans.
- HRCT findings were collected from the Picture Archiving and Communication System (PACS), along with patient demographics (age, sex).
Main Results:
- The most frequent HRCT findings were ground-glass opacity (GGO) (87.3%), peripheral distribution (82.4%), and posterior distribution (81.5%).
- Less common findings included pleural effusion (7.6%) and lymphadenopathy (5.1%).
- Peripheral distribution, round opacities, single lobe involvement, and pleural effusion showed statistical significance in patients under and over 50 years of age.
Conclusions:
- Chest HRCT findings, particularly GGO and peripheral distribution, are vital for diagnosing COVID-19.
- These imaging patterns can assist clinicians in the early identification of COVID-19 patients.
Purpose:
Due to the emergence of the new coronavirus 2019 and the lack of sufficient information about infected patients, this study was conducted to investigate the chest high-resolution computed tomography (HRCT) findings of patients infected with the new coronavirus 2019.
Methods:
This cross-sectional study was performed on COVID-19 patients referred to Medical Imaging Centers of Sari, Mazandaran, Iran, on March 2020 for computed tomography (CT) scan. Symptomatic patients were referred to the Medical Imaging Center for diagnosis confirmation through CT scan. In addition to age and sex, HRCT findings were collected from the picture archiving and communication system (PACS) for further evaluations.
Results:
Out of 552 patients with mean age of 51.2 ± 14.8 years, the male/female ratio was 1.38 to 1. The most common expressive findings in patients were ground-glass opacity (GGO) (87.3%), peripheral distribution (82.4%), and posterior distribution (81.5%). The most conflicting findings in patients were pleural effusion (7.6%), peribronchovascular distribution (7.6%), and lymphadenopathy (5.1%). The peripheral distribution (p = 0.034), round opacities (p = 0.02), single lobe (p = 0.003), and pleural effusion (p = 0.037) were significant in people under and over 50 years of age.
Conclusion:
In summary, the present study indicated that in addition to GGO, peripheral distribution findings could be a vital diagnostic choice in COVID-19 patients.
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