基于CT扫描数据的三维宫脊柱模型与肌肉的有限元分析
Zhi Li1, Bing Zhang1, Bin Fang1
1Faculty of Mechanical Engineering, Qilu University of Technology, Jinan, Shandong, China.
概括
本研究提出了一种使用CT数据和医疗软件创建椎脊椎有限元模型的新方法. 经过验证的模型有助于分析运动期间脊柱结构的压力,识别易受伤害的区域.
科学领域:
- 生物力学 生物力学
- 计算解剖学的计算解剖学
- 医学成像分析分析 医学成像分析
背景情况:
- 宫脊椎病发病率正在上升,影响日常生活.
- 有限元模型有助于宫脊椎病的研究,但用MRI进行肌肉建模具有挑战性.
- 有限的研究存在于椎脊椎有限元素模型的静态分析与固体肌肉.
研究的目的:
- 提出并验证一种新的方法,使用计算机断层扫描 (CT) 数据和医疗软件建立椎脊椎的有限元模型.
- 分析和预测人类运动特征,基于在既定模型中的力分布.
- 克服肌肉建模的局限性,用于有限元分析.
主要方法:
- 在医疗软件中重建肌肉模型.
- 将肌肉模型与CT衍生的脊椎数据集成,以创建一个3D有限元素模型 (C0-C7).
- 施加1.5Nm负荷来模拟椎脊柱的运动,并分析静态条件.
主要成果:
- 成功建立和验证椎脊椎有限元素模型.
- 在六次模拟运动中,获取各种脊柱部件的应力分布数据.
- 验证模型在表示椎脊柱力学方面的有效性.
结论:
- 通过使用医疗软件和CT数据,可以开发用于机械分析的椎脊柱的强大的有限元素模型.
- 特定的椎间盘 (C2-3,C3-4,C4-C5) 和肌肉 (正后大,长,斜下) 被确定为易受伤害的.
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