Fig. 3From: Chronic exposure to diesel exhaust may cause small airway wall thickening without lumen narrowing: a quantitative computerized tomography study in Chinese diesel engine testersReconstruction of tracheobronchial tree and measurement of airway dimensions. One axial image of chest CT scan (a) and reconstructed image of tracheobronchial tree (b) for a study subject were presented with the candidate airway for measurement highlighted by the red line. The airway straightened was shown in C with the measurement spots for the 6th and 9th generations labeled by the red lines. The cross-sectional images of airways for dimensional measurement were presented in D (6th generation) and E (9th generation) with lumen diameter and wall thickness labeledBack to article page