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Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
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Thoracic high resolution computed tomography (HRCT) in asthma.

D Machado1, C Pereira, L Teixeira

  • 1Immunoallergy Department, Coimbra University Hospital, Coimbra, Portugal.

European Annals of Allergy and Clinical Immunology
|January 28, 2010
PubMed
Summary

High-resolution computed tomography (HRCT) reveals that most asthma patients experience imaging changes, including irreversible lesions, correlating with disease severity and duration. Early abnormalities can occur even in mild asthma cases.

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Area of Science:

  • Pulmonology
  • Radiology
  • Medical Imaging

Background:

  • High-resolution computed tomography (HRCT) is a key imaging technique for diagnosing thoracic diseases.
  • In asthma, HRCT is particularly valuable for managing difficult-to-control or severe cases.

Purpose of the Study:

  • To evaluate HRCT imaging changes in asthma patients.
  • To correlate these changes with asthma symptoms and disease duration.

Main Methods:

  • Thirty-three asthma patients across different severity stages (GINA classification) were included.
  • Patients underwent HRCT scans.
  • Lesions were categorized as reversible (e.g., mucoid impaction) or irreversible (e.g., bronchiectasis, bronchial wall-thickening).

Main Results:

  • 81.81% of patients showed HRCT changes, with irreversible lesions being most common.
  • Irreversible lesions were more pronounced in severe asthma with longer disease duration.
  • Even mild asthma patients with short disease duration exhibited irreversible changes.

Conclusions:

  • HRCT findings in asthma are linked to disease severity and chronicity.
  • Early and irreversible abnormalities can manifest even in mild or early-stage asthma.
  • These changes reflect chronic inflammation and airway remodeling due to exacerbations.