Evaluation of airways in obstructive pulmonary disease using high-resolution computed tomography

Observational studies suggest a high prevalence of airway abnormalities in clinically stable asthmatics and complement similar findings in studies of the distribution of ventilation, airway closure, and gas exchange in asthmatic subjects. The findings of airway wall thickening support histopathological studies but observations of emphysema, bronchial dilatation, and emphysema are more difficult to interpret in view of the lack of correlation studies. This may be an area of future research.