Figure 2: Cross- and longitudinal-sectional endobronchial optical coherence tomography images from the 3rd to 9th generation of bronchi
Compared with control subjects, patients with asthma were characterized by significant airway wall thickening and luminal narrowing. More prominent structural abnormalities were associated with greater severity of asthma, as evidenced by the decreased airway caliber and greater airway wall area.
Abbreviation: gen: generation of bronchi; 3rd: the 3rd generation of bronchi; 6th: the 6th generation of bronchi; 9th: the 9th generation of bronchi.