NDLI: Mechanical Properties of Porcine Brain Tissue in the Coronal Plane: Interregional Variations of the Corona Radiata

Content Provider	Springer Nature Link
Author	Chen, Fuqian Zhou, Jun Li, Yan Wang, Yongbo Li, Lihong Yue, Hongzhi
Copyright Year	2015
Abstract	Most biomechanical models that aim to investigate traumatic brain injury consider the corona radiata as a homogeneous structure. To verify this, indentation–relaxation tests using a custom-designed indentation device were performed on the anterior, superior, and posterior region of the corona radiata in the coronal plane of the porcine brain. Using Boltzmann hereditary integral, a linear viscoelastic model with a Prony series approximation was fitted to the time-dependent shear modulus for different regions of the corona radiata, and the fit parameters were generated. The posterior region was the stiffest and the anterior region was the least stiff. A statistical analysis revealed a significant difference in biomedical properties between the anterior and superior regions, as well as between the anterior and posterior regions in the short time scale. However, the results showed that these differences faded away as the tissue approached equilibrium. No significant difference was observed between the superior and posterior regions along the total time history of relaxation. This is the first demonstration of the regional biomechanical heterogeneity of the corona radiata, and these results will improve future biomedical models of the porcine brain.
Starting Page	2903
Ending Page	2910
Page Count	8
File Format	PDF
ISSN	00906964
Journal	Annals of Biomedical Engineering
Volume Number	43
Issue Number	12
e-ISSN	15739686
Language	English
Publisher	Springer US
Publisher Date	2015-06-06
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Traumatic brain injury Indentation Hereditary integral Viscoelasticity Biomechanics Heterogeneity Biomedicine general Biomedical Engineering Biophysics and Biological Physics Mechanics Biochemistry
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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