… longitudinal structure of the airway lumen, a feature … shape irregularity of the airway lumen
by measuring changes in the internal radii of imaginary inscribed spheres in the airway lumen …

Title Longitudinal shape irregularity of airway lumen assessed by CT in patients with bronchial
asthma and COPD( Abstract_要 A Page 1 Title Longitudinal shape irregularity of airway …

… airway shape assessment approach based on the 3D segmentation of the airway lumen …
The aim is to easily spot airway caliber variations or irregular bronchus shapes on this kind of …

… In large bronchi the cartilages are irregular in shape but frequent enough … airway lumen.
Submucosal glands are responsible for producing most of the mucus found in the large airways. …

… Mucosal ulceration, diffuse and chronic submucosal inflammation, and fibrosis lead to
irregular airway wall thickening with luminal narrowing. CT scan can show irregular narrowing of …

… for investigating the shape of the inner airway wall surface, it … First, the airway lumen is
segmented and its surface geometry … Local bronchus irregularities may induce local variations in …

… are cut in cross-section, and that any noncircularity is inherent in the shape of the airway. …
the mucosal surface and to irregularities on the adventitial surface of the airway at sites of …

… In this study we have measured the size and shape of bronchioles, the distance … lumen
area (TLA) was calculated by taking the lumen circumference, which frequently had an irregular …

… upper tracheal stenotic lesions, an airway device placed inside the lumen can interfere with
the … Although it is not possible to change the shape of a curved rigid structure, the direction of …

… and is a function of its conformity to the ellipsoidal shape (… the most distal conducting airways
of lungs with centrilobular … inadvertent inclusion of irregular sections adjacent to bronchiolar …