Small-Airway Diseases of the Lungs: Value of Expiratory CT
Small-airway disease (SAD) is generally defined as a pathological condition in which the small conducting airways are affected. There is disagreement about which airways should be considered as small airways. Physiologists generally consider airways smaller than 2 mm as small airways, while pathologists define small airways as bronchioles and usually include terminal bronchioles, respiratory bronchioles and alveolar ducts [1, 5].
KeywordsSmall Airway Hypersensitivity Pneumonitis Bronchiolitis Obliterans Mixed Connective Tissue Disease Alveolar Duct
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- 1.Grenier P, Beigelman C, Brauner M (1994) High resolution computed tomography in the study of the respiratory tract. Ann Radiol (Paris) 37:198–215Google Scholar
- 17.Verschakelen JA, Scheinbaum K, Bogaert JG, Lacquet L, Nemery B, Baert AL (1994) Correlation between cigarette smoking and presence of focal areas of air-trapping on expiratory high-resolution CT scans. Radiology 193(P):368Google Scholar