Geodesic
A 3D discrete model of the diaphragm and human trunk
Emmanuel Promayon1 ; Pierre Baconnier1, 2
1TIMC-IMAG, CNRS UMR 5525, Université Joseph Fourier, Grenoble, Institut d'Ingénierie de l'Information de Santé, Domaine de la Merci, F-38706 La Tronche Cedex, France
2CHU Grenoble, Hopital Michallon, F-38700 La Tronche, France
ESAIM. Proceedings, Tome 23 (2008), pp. 66-77
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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.
DOI : 10.1051/proc:082305

Emmanuel Promayon  1   ; Pierre Baconnier  1 , 2

1 TIMC-IMAG, CNRS UMR 5525, Université Joseph Fourier, Grenoble, Institut d'Ingénierie de l'Information de Santé, Domaine de la Merci, F-38706 La Tronche Cedex, France
2 CHU Grenoble, Hopital Michallon, F-38700 La Tronche, France 
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     author = {Emmanuel Promayon and Pierre Baconnier},
     title = {A {3D} discrete model of the diaphragm and human trunk},
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     doi = {10.1051/proc:082305},
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Emmanuel Promayon; Pierre Baconnier. A 3D discrete model of the diaphragm and human trunk. ESAIM. Proceedings, Tome 23 (2008), pp. 66-77. doi: 10.1051/proc:082305

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