A Proposed Injury Threshold for Mild Traumatic Brain Injury

[+] Author and Article Information
Liying Zhang, King H. Yang, Albert I. King

Bioengineering Center, Wayne State University, Detroit, Michigan 48202

J Biomech Eng 126(2), 226-236 (May 04, 2004) (11 pages) doi:10.1115/1.1691446 History: Received February 12, 2002; Revised November 26, 2003; Online May 04, 2004
Copyright © 2004 by ASME
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Laboratory accident reconstruction set up. Helmeted headform A represents a struck player’s head and helmeted headform B represents a striking player’s head
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Block diagram illustrating the tissue-injury response to traumatic input loading as a biomechanical analysis process using a computer surrogate
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A sample set of the input head translational and rotational acceleration time histories
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(A) Predicted peak positive and peak negative intracranial pressure-time histories; (B) Predicted intracranial pressure distribution 9 ms after the impact
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The predicted shear stress histories in the brainstem and the thalamus regions from a typical case
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Shear stress contours predicted by the model at 16 ms for: (A) a parasagittal section; (B) Sectional view through A-A which represents a section through the mamilothalamic tract
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Relationship between intracranial pressure and the maximum translational acceleration (A) and between shear stress at the midbrain and the maximum rotational acceleration of the head (B)
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Logist plots of the predicted injury probability based on shear stress at brainstem predicted by model and the input head rotational acceleration




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