An immersed finite element method approach for brain biomechanics

Saswati Roy, Luca Heltai, Corina Drapaca, Francesco Costanzo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Hydrocephalus is a clinical condition characterized by abnormalities in the cerebrospinal fluid (CSF) circulation resulting in ventricular dilation. Within limits, the dilation of the ventricles can be reversed by either a shunt placement in the brain or by performing a ventriculostomy surgery, resulting in a relief from the symptoms of hydrocephalus. However, the response of patients to either treatment continues to be poor. Therefore, there is an earnest need to design better therapy protocols for hydrocephalus. An important step in this direction is the development of predictive computational models of the mechanics of hydrocephalic brains. In this paper we present an Immersed Finite Element Method (IFEM) approach to study brain mechanics. IFEM is an emerging computational method that is suitable for analyzing the complex interactions between fluid and deformable structures. We model the brain as a neo-Hookean material that is submerged in the CSF modeled as a Newtonian fluid. We use medical images of a hydrocephalic brain to generate the mesh for the immersed solid. Our preliminary results show that the viscosity of CSF has a significant influence on the deformation of the brain tissue. We believe that our study could play an important role in predicting and ultimately improving the outcome of ventriculostomy.

Original languageEnglish (US)
Title of host publicationMechanics of Biological Systems and Materials - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics
Pages79-86
Number of pages8
DOIs
StatePublished - Jan 1 2013
Event2012 Annual Conference on Experimental and Applied Mechanics - Costa Mesa, CA, United States
Duration: Jun 11 2012Jun 14 2012

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume5
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other2012 Annual Conference on Experimental and Applied Mechanics
CountryUnited States
CityCosta Mesa, CA
Period6/11/126/14/12

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

Cite this

Roy, S., Heltai, L., Drapaca, C., & Costanzo, F. (2013). An immersed finite element method approach for brain biomechanics. In Mechanics of Biological Systems and Materials - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics (pp. 79-86). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 5). https://doi.org/10.1007/978-1-4614-4427-5_12