Emmanuel Promayon

Home Page Research Internship/Stages Teaching Contact

Jump to : Download | Abstract | Keywords | Contact | BibTex reference | EndNote reference |


E. Promayon, L. Gaillard, S. Craighero. Functionnal Model of the Diaphragm for Computer Assisted Medical Interventions. In 6th International Symposium on Computer Methods in Biomechanics & Biomedical Engineering, CMBBE04, J. Middleton, N. Shrive, M. Jones (eds.), http://www.uwcm.ac.uk/biomadrid/, February 2004.


Download paper: Adobe portable document (pdf)

Copyright notice: Disclaimer: this material is presented to ensure timely dissemination of scholarly and technical work. Files of articles may be covered by copyright. You may browse the articles at your convenience in the same spirit as you may read a journal or conference proceedings in a public library. Retrieving, copying, distributing these files, entirely or in parts, may violate copyright protection laws. Copyright and all rights therein are retained by authors or by other copyright holders. All person copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.


Computer assisted medical interventions of the heart, liver, digestive or urinary systemhave underlined the need for a reliable, non-invasive three-dimensional technique toassess the respiratory movements, and more particularly the diaphragm displacements.In this context, we present a 3D functional model of the diaphragm based on a discrete biomechanical model. In this model, soft tissues are considered as three-dimensionalelastic component. Elasticity is modeled by minimizing a deformation energy expressedusing a local coordinate system. Muscles are elastic components where the explicitcontraction directions are defined as well as an activation function that generatecontraction forces. Elastic component can be volume constrained to ensureincompressibility.A dynamic MRI study, where the subject respiratory volumes were strictly controlledusing a ventilator, was used to extract the diaphragm shapes and deformations in relationwith the corresponding lung volumes. A 3D diaphragm model was built according toanatomical references and simulation of a respiratory cycle were performed faster thanreal-time. The resulting simulations were confronted with the acquired data. Wecompared the diaphragm deformation and movements as well as the ventilationvolumes. The simulations were accurately simulating the diaphragm piston-like motionand lung volumes variations, although variations is some directions were not correct


[ Respiration ] [ Softtissue ]


Emmanuel Promayon http://membres-timc.imag.fr/Emmanuel.Promayon

BibTex Reference

   Author = {Promayon, E. and Gaillard, L. and Craighero, S.},
   Title = {Functionnal Model of the Diaphragm for Computer Assisted Medical Interventions},
   BookTitle = {6th International Symposium on Computer Methods in Biomechanics & Biomedical Engineering, CMBBE04},
   Howpublished = {cd},
   editor = {Middleton, J. and Shrive, N. and Jones, M.},
   Address = {http://www.uwcm.ac.uk/biomadrid/},
   Month = {February},
   Year = {2004}

EndNote Reference [help]

Get EndNote Reference (.ref)

Home Page Research Internship/Stages Teaching Contact
This page was automatically generated thanks to JabRef and bib2html , 3 March 2022