Role of rotational acceleration and deceleration pulses on brain strains in lateral impact

Li, Jillanrong<sup>1,2</sup>; Zhang, Jiangyue<sup>1,2</sup>; Yoganandan, Narayan<sup>1,2</sup>; Pintar, Frank A.<sup>1,2</sup>; Gennarelli, Thomas A.<sup>1,2</sup>

Affiliations

¹Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI USA

Abstract and keywords

The objective of the study was to determine the role of acceleration-deceleration pulses on brain strains in lateral impact. A coronal plane finite element model was developed and validated with experimental temporal motion and strain data from literature. Parametric studies were conducted by applying acceleration, deceleration, or combined acceleration-deceleration pulses with varying separating time intervals. Temporal principal strains were obtained at the corpus callosum, base of postcentral sulcus, and cerebral cortex of the parietal lobe regions. Results indicated region- and pulse-specific responses to angular accelerations and separating time intervals.

Keywords: brain; finite element method; accelerations; diffuse brain injury

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Cited By (1)

Year	Entry
2008	Fijalkowski RJ. Rotational Acceleration Pulse Characteristics Affect Mild Diffuse Brain Injury Severity [PhD thesis]. Marquette University; May 2008.