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Rotational Acceleration Duration Affects Brain Strains in Lateral Impact

[+] Author Affiliations
Jianrong Li, Jiangyue Zhang, Narayan Yoganandan, Frank A. Pintar, Thomas A. Gennarelli

Medical College of Wisconsin, Milwaukee, WI

Paper No. SBC2007-176358, pp. 913-914; 2 pages
doi:10.1115/SBC2007-176358
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5

abstract

Traumatic brain injury is a leading cause of disability and fatality in the United States. Approximately two million traumatic brain injury cases occur every year [1]. Motor vehicle crashes are a primary source [2]. Both clinical and laboratory studies have been conducted to understand injury mechanisms and establish injury thresholds [3, 4]. Physical models have also been used to investigate injury biomechanics [5, 6]. Angular acceleration is considered as a major cause of diffuse brain injuries (DBI) [7, 8], while the angular velocity is chosen as a suitable load descriptor for a diffuse brain injury criterion [4]. The present study is focused on the effect of angular acceleration duration on brain strains due to lateral impact.

Topics: Brain

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