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SIMULATION OF MOUSE BRAIN TISSUE UNDER CONTROLLED CORTICAL IMPACT

机译:皮质激素控制下的小鼠脑组织模拟

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Traumatic brain injury is one of the leading causes of injury and death in both developed and developing countries. Animal models are important preclinical tools for injury level studies. In this study, a finite element (FE) model of mouse brain was constructed to investigate the biomechanical responses of brain tissue during a controlled cortical impact (CCI). Impact of the brain tissue was simulated with varying impact speeds and angles. Computational results indicated that the viscoelastic properties of the brain tissue and the impact angle could greatly influence the injury responses. Comparison with the experimental observation showed that energy based stress parameters such as the von Mises stress has the potential to be descriptive of the injury levels.
机译:在发达国家和发展中国家,颅脑外伤都是造成伤亡的主要原因之一。动物模型是进行损伤水平研究的重要临床前工具。在这项研究中,建立了小鼠大脑的有限元(FE)模型,以研究大脑皮层在受控皮质撞击(CCI)期间的生物力学响应。用变化的撞击速度和角度模拟了脑组织的撞击。计算结果表明,脑组织的粘弹性和冲击角可以极大地影响损伤反应。与实验观察结果的比较表明,基于能量的应力参数(如冯·米塞斯应力)具有描述损伤程度的潜力。

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