A 3D discrete model of the diaphragm and human trunk

Abstract : In this paper, a 3D discrete model is presented to model the movements of the trunk during breathing. In this model, objects are represented by physical particles on their contours. A simple notion of force generated by a linear actuator allows the model to create forces on each particle by way of a geometrical attractor. Tissue elasticity and contractility are modeled by local shape memory and muscular fibers attractors. A specific dynamic MRI study was used to build a simple trunk model comprised of by three compartments: lungs, diaphragm and abdomen. This model was registered on the real geometry. Simulation results were compared qualitatively as well as quantitatively to the experimental data, in terms of volume and geometry. A good correlation was obtained between the model and the real data. Thanks to this model, pathology such as hemidiaphragm paralysis can also be simulated.
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Submitted on : Monday, July 28, 2008 - 10:53:53 AM
Last modification on : Thursday, March 21, 2019 - 2:56:08 PM
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  • HAL Id : hal-00294455, version 1
  • ARXIV : 0808.0339

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Emmanuel Promayon, Pierre Baconnier. A 3D discrete model of the diaphragm and human trunk. "Lung Modelling", Dec 2006, France. pp.66-77. ⟨hal-00294455⟩

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