Quantitative CT Measures of Bronchiectasis in Smokers

Background Bronchiectasis is frequent in smokers with COPD; however, there are only limited data on objective assessments of this process. The objective was to assess bronchovascular morphology, calculate the ratio of the diameters of bronchial lumen and adjacent artery (BA ratio), and identify those measurements able to discriminate bronchiectasis. Methods We collected quantitative CT (QCT) measures of BA ratios, peak wall attenuation, wall...