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Updated: Sep 19, 2025
08:05
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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[Hypersensitivity pneumonitis : S2K guideline from a radiological perspective]
Okka W Hamer1, Dirk Koschel2, Beate Rehbock3
1Institut für Röntgendiagnostik, Universitätsklinikum Regensburg und Lungenfachklinik Caritas St. Maria, Donaustauf, Deutschland. okka.hamer@ukr.de.
Radiologie (Heidelberg, Germany)
|June 17, 2025
Summary
Hypersensitivity pneumonitis (HP), an immune lung reaction, requires HRCT imaging for diagnosis. Fibrosis extent on imaging impacts patient prognosis, guiding treatment decisions.
Area of Science:
- Pulmonary Medicine
- Immunology
- Radiology
Context:
- Hypersensitivity pneumonitis (HP), or extrinsic allergic alveolitis (EAA), is a rare immunological lung disease.
- The first German guideline for HP diagnosis and treatment was published in 2024.
- High-resolution computed tomography (HRCT) is the preferred imaging modality.
Purpose:
- To outline the diagnostic approach to HP using HRCT.
- To differentiate between inflammatory and fibrotic HP based on imaging findings.
- To emphasize the prognostic significance of fibrosis and honeycombing in HP.
Summary:
- HP involves an inflammatory reaction in the lung parenchyma and terminal bronchioli.
- HRCT is crucial for distinguishing inflammatory from fibrotic HP.
- Assessing the extent of inflammation versus fibrosis and identifying honeycombing on HRCT is vital for prognosis.
Impact:
- Provides a framework for standardized HP diagnosis and reporting.
- Highlights the importance of imaging in determining patient outcomes.
- Facilitates better-informed clinical management and treatment strategies for HP.
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