Title :
Tracheal and central bronchial aerodynamics using virtual bronchoscopy and computational fluid dynamics
Author :
Cebral, Juan R. ; Summers, Ronald M.
Author_Institution :
Sch. of Comput. Sci., George Mason Univ., Fairfax, VA, USA
Abstract :
Virtual bronchoscopy reconstructions of the airway noninvasively provide useful morphologic information of structural abnormalities such as stenoses and masses. In this paper, we show how virtual bronchoscopy can be used to perform aerodynamic calculations in anatomically realistic models. Pressure and flow patterns in a human airway were computed noninvasively. These showed decreased pressure and increased shear stress in the region of a stenosis.
Keywords :
computational fluid dynamics; computerised tomography; image reconstruction; medical image processing; pneumodynamics; shear flow; airway reconstructions; central bronchial aerodynamics; computational fluid dynamics; flow pattern; morphologic information; pressure pattern; shear stress; stenoses; structural abnormalities; tracheal bronchial aerodynamics; virtual bronchoscopy; Aerodynamics; Bronchoscopy; Computational fluid dynamics; Computational modeling; Computed tomography; Geometry; Humans; Mesh generation; Stress; Visualization; Air Movements; Bronchi; Bronchography; Bronchoscopy; Computer Graphics; Computer Simulation; Data Display; Humans; Models, Biological; Online Systems; Pulmonary Ventilation; Rheology; Trachea; User-Computer Interface; Wegener Granulomatosis;
Journal_Title :
Medical Imaging, IEEE Transactions on
DOI :
10.1109/TMI.2004.828680
