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Air-flow simulation in realistic models of the trachea
By: Deschamps, T.; Trebotich, D.; Schwartz, R.;
2004 / IEEE / 0-7803-8439-3
Description
This item was taken from the IEEE Conference ' Air-flow simulation in realistic models of the trachea ' In this article we present preliminary results from a new technique for flow simulation in realistic anatomical airways. The airways are extracted by means of Level-Sets methods that accurately model the complex and varying surfaces of anatomical objects. The surfaces obtained are defined at the sub-pixel level where they intersect the Cartesian grid of the image domain. It is therefore straightforward to construct embedded boundary representations of these objects on the same grid, for which recent work has enabled discretization of the Navier-Stokes equations for incompressible fluids. While most classical techniques require construction of a structured mesh that approximates the surface in order to extrapolate a 3D finite-element griding of the whole volume, our method directly simulates the air-flow inside the extracted surface without losing any complicated details and without building additional grids.
Related Topics
Medical Computing
Navier-stokes Equations
Incompressible Fluids
Air-flow Simulation
Realistic Trachea Models
Level-sets Methods
Cartesian Grid
Embedded Boundary Representations
Navier-stokes Equations
Computational Modeling
Data Mining
Laboratories
Image Processing
Computed Tomography
Shape Measurement
Computational Geometry
Tracking
Equations
Embedded Boundary Methods
Air-flow
Segmentation
Level-sets
Fast-marching
Navier-stokes Equations
Projection Methods
Physiological Models
Pneumodynamics
Computational Fluid Dynamics
Engineering
Computational Fluid Dynamics