A 3D discrete model of the diaphragm and human trunk

DOI10.1051/PROC:082305zbMATH Open1156.92306arXiv0808.0339OpenAlexW3022998837MaRDI QIDQ3616989

Publication date: 26 March 2009

Published in: ESAIM: Proceedings (Search for Journal in Brave)

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.

Full work available at URL: https://arxiv.org/abs/0808.0339

Mathematics Subject Classification ID

Probabilistic models, generic numerical methods in probability and statistics (65C20) Physiology (general) (92C30) Physiological flows (76Z05) Physiological flow (92C35)

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