Contact surface and material nonlinearity modeling of human lungs

Physics in Medicine and Biology
A Al-MayahK M Brock

Abstract

A finite element model has been developed to investigate the effect of contact surfaces and hyperelastic material properties on the mechanical behavior of human lungs of one lung cancer patient. The three-dimensional model consists of four parts, namely the left lung, right lung, tumor in the left lung and chest wall. The interaction between the lungs and chest wall was modeled using frictionless surface-based contact. Hyperelastic material properties of the lungs are used in the model. The effect of the two parameters is investigated by tracking the tumor movement, and by comparing the analytical results to the patient bifurcation points: 45 points in each lung and 18 points around the tumor. The accuracy of the model is improved by including the contact surface and hyperelastic material properties. The average error and the standard deviation (SD) in modeling the displacement in the SI direction are reduced from 0.68 (SD = 0.34) cm in the elastic model to 0.09 (0.21) cm in the contact-hyperelastic model. Similarly, the average error (SD) of tumor location decreases from 0.71 (0.21) cm in the elastic material without contact to -0.03 (0.24) cm in the hyperelastic material with contact model.

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Citations

Dec 17, 2009·Physics in Medicine and Biology·Edward CastilloThomas Guerrero
Jul 8, 2011·Physics in Medicine and Biology·Adil Al-MayahKristy Brock
May 15, 2012·Physics in Medicine and Biology·Hualiang ZhongIndrin J Chetty
Feb 11, 2012·Medical Physics·Carolyn J NiuKristy K Brock
Jan 26, 2010·Medical Physics·M J YaffeK Brock
Apr 14, 2010·Medical Physics·Hualiang ZhongIndrin J Chetty
Jan 17, 2016·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Franck P Vidal, Pierre-Frédéric Villard
Aug 18, 2012·Computer Aided Surgery : Official Journal of the International Society for Computer Aided Surgery·Ali Sadeghi-NainiAbbas Samani
Oct 5, 2010·Progress in Biophysics and Molecular Biology·A HostettlerL Soler
Jan 10, 2016·Medical Physics·Navid SamavatiKristy K Brock
Jun 24, 2009·International Journal of Radiation Oncology, Biology, Physics·Yaoqin XieLei Xing
Apr 1, 2015·Practical Radiation Oncology·Michael VelecKristy K Brock
Nov 26, 2010·Journal of Magnetic Resonance Imaging : JMRI·Merryn H Tawhai, Ching-Long Lin
Oct 25, 2014·IEEE Transactions on Medical Imaging·Bernhard FuerstAli Kamen
Jun 7, 2013·IEEE Transactions on Medical Imaging·Aristeidis SotirasNikos Paragios
Aug 12, 2009·IEEE Transactions on Medical Imaging·Andrew Peter KingTobias R Schaeffter
Jul 5, 2011·IEEE Transactions on Bio-medical Engineering·Ali Sadeghi NainiAbbas Samani
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Nov 11, 2016·IEEE Transactions on Medical Imaging·You ZhangJing Wang
Aug 21, 2015·Journal of Biomechanical Engineering·Olusegun IlegbusiAnand P Santhanam
Oct 21, 2010·Physics in Medicine and Biology·Adil Al-MayahKristy Brock
Aug 31, 2013·Journal of Applied Physiology·Nenad FilipovicAkira Tsuda
Mar 7, 2009·Physics in Medicine and Biology·Richard CastilloThomas Guerrero
Apr 2, 2015·Physics in Medicine and Biology·Navid SamavatiKristy Brock
Apr 11, 2013·Physics in Medicine and Biology·Richard CastilloThomas Guerrero
Jun 9, 2016·Physics in Medicine and Biology·Guillaume CazoulatKristy K Brock
Feb 2, 2021·Computers in Biology and Medicine·Parya JafariAbbas Samani
Nov 19, 2020·Physics in Medicine and Biology·M RanjbarL D Timmie Topoleski
Feb 23, 2021·Medical Physics·Guillaume CazoulatKristy K Brock

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