Bronchoscopic evaluation of stenosis is limited due to radial distortion of bronchoscopic
images and the unknown distance between the endoscope and the stenotic area. The …

Bronchoscopy is a commonly used clinical tool that provides a direct image of the bronchial
lumen. However, bronchoscopy has seen little use as a quantitative measurement tool …

Measurement of airway size using endoscopic morphometry was investigated. Endoscopic
images of the porcine tracheobronchial tree were obtained via a Storz system at a known …

Quantitative assessment of airway caliber is generally confined to indirect physiologic
methods or to radiographic techniques. Fiberoptic bronchoscopy provides a direct view of …

Background: Quantitative assessment of airway caliber is generally confined to indirect
methods. Fiberoptic bronchoscopy provides a direct view of the airways, but measurement of …

Volume averaging results in both over-and underestimation of airway dimensions when they
are measured by high-resolution computed tomography (HRCT). The current authors …

The assessment of airway dimensions in patients with airway disease by using computed
tomography (CT) has been limited by the obliquity of bronchi, the ability to identify the …

Background A quantitative understanding of airway sizes and proportions and a reference
point for comparisons are important to a pediatric bronchoscopist. The aims of this study …

Objectives (a) To assess the effects of computed tomography (CT) scanners, scanning
conditions, airway size, and phantom composition on airway dimension measurement and …

Computed tomography (CT) of the lungs makes it possible to study individual airways. A
technique using high-resolution-CT (HRCT) has been developed to measure the internal …