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Updated: Apr 7, 2026
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Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
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Organizing pneumonia: chest HRCT findings
Igor Murad Faria1, Gláucia Zanetti2, Miriam Menna Barreto3
1Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Summary
High-resolution computed tomography (HRCT) reveals ground-glass opacities and consolidation as common findings in organizing pneumonia, predominantly affecting the middle and lower lung fields.
Area of Science:
- Radiology
- Pulmonology
- Pathology
Background:
- Organizing pneumonia is an idiopathic interstitial pneumonia.
- High-resolution computed tomography (HRCT) is crucial for diagnosing lung diseases.
Purpose of the Study:
- To determine the frequency and distribution of HRCT findings in patients with organizing pneumonia.
Main Methods:
- Retrospective review of HRCT scans from 36 biopsy-proven organizing pneumonia patients.
- Evaluation by two independent radiologists with consensus for discordant interpretations.
Main Results:
- Ground-glass opacities (88.9%) and consolidation (83.3%) were the most frequent HRCT findings.
- Other findings included peribronchovascular opacities, reticulation, and bronchiectasis.
- Lesions were predominantly bilateral, affecting middle and lower lung zones.
Conclusions:
- Ground-glass opacities and consolidation are key HRCT indicators of organizing pneumonia.
- The distribution is generally random but favors the middle and lower lung thirds.
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