Modelling and analysis of the effect of angular velocity and acceleration on brain strain field in traumatic brain injury

Hesam Hoursan, Mohammad Taghi Ahmadian, Ahmad Barari, Hamid Naghibi Beidokhti

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Traumatic brain injury (TBI) has long been known as one of the most anonymous reasons for death around the world. A presentation of a model of what happens in the process has been under study for many years; and yet it remains a question due to physiological, geometrical and computational complications. Although the facilities for soft tissue modeling have improved and the precise CT-imaging of human head has revealed novel details of brain, skull and the interface (the meninges), a comprehensive FEM model of TBI is still being studied. This study aims to present an optimized model of human head including the brain, skull, and the meninges after a comprehensive study of the previous models. The model is then used to investigate the effects of various sudden velocityacceleration impulses on the strain field of the brain by using FE method. Next, the results are summed up and compared with an existing criterion on damage threshold in the brain during trauma. To reach this aim, a full geometrical model of a 30-year-old patient's head has been generated from CT-scan and MR data. The model has been exposed to 20 angular velocityacceleration pulses. Subsequently, the changes in the strain field have been compared with the results obtained in the previous studies yielding acceptable accordance with a major previous criterion. The results also show that certain criteria can be generated on the threshold of damage in the brain.

Original languageEnglish
Title of host publicationASME 2013 International Mechanical Engineering Congress and Exposition Volume 3A: Biomedical and Biotechnology Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)978-0-7918-5621-5
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes
EventASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013 - San Diego, CA, United States
Duration: 15 Nov 201321 Nov 2013
https://www.asmeconferences.org/congress2013/

Conference

ConferenceASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013
Abbreviated titleIMECE 2013
CountryUnited States
CitySan Diego, CA
Period15/11/1321/11/13
Internet address

Keywords

  • Angular acceleration
  • Angular velocity
  • Finite Element Method (FEM)
  • Meninges
  • Strain field
  • Traumatic Brain Injury (TBI)

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