Journal
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME
Volume 124, Issue 2, Pages 244-252Publisher
ASME-AMER SOC MECHANICAL ENG
DOI: 10.1115/1.1449907
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- ODCDC CDC HHS [R49/CCR-312712] Funding Source: Medline
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The large strain mechanical properties of adult porcine gray and white matter brain tissues were measured in shear and confirmed in compression, Consistent with local neuroarchitecture, gravy matter showed the least amount of anisotropy. and corpus callosum exhibited the greatest degree of anisotropy. Mean regional properties were significantly distinct, demonstrating that brain tissue is inhomogeneous. Fresh adult human brain tissue properties were slightly stiffer than adult porcine properties bill considerably less stiff than the human autopsy data in the literature. Mixed porcine gray/white matter samples were obtained front animals at infant and toddler stages of neurological development, and shear properties compared to those in tire adult. Only the infant properties were significantly different (stiffer) front the adult.
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