论文部分内容阅读
目的建立具有详细解剖结构的脊柱颈胸结合部三维非线性有限元模型并验证其有效性。方法选取自愿参加实验的正常健康男性1名,经受试者知情同意。复习病史并行X线平片检查排除颈胸部疾患。通过对正常人的CT薄层扫描获得的原始DICOM数据图像,采用Mimic10.01软件进行数据处理,进行骨质的三维重建,使用Magic9.9改良建立的模型,导入ANYSY10.0软件进行计算机模拟仿真生物力学研究。结果所建模型外观清晰逼真,几何相似性好。所建的颈胸结合部有限元模型能够通过验证,与体外生物力学实验结果基本吻合,可进一步行各种颈胸结合部有限元力学分析。结论为临床医生对脊柱颈胸交界区的三维有限元模型的建立提供了一种便捷而精确的方法,建立的模型具有较高的真实性,可以用于进一步的生物力学分析实验。
Objective To establish a three-dimensional nonlinear finite element model of cervical spine and chest with detailed anatomical structure and verify its validity. Methods One healthy volunteer who volunteered to participate in the experiment was selected and informed consent was obtained from the subjects. Review the history of concurrent X-ray examination to exclude cervical and thoracic disorders. The original DICOM data obtained by CT thin-layer scanning of normal people were processed by Mimic10.01 software for three-dimensional reconstruction of bone. The improved model was built using Magic9.9 software and imported into ANYSY10.0 software for computer simulation Biomechanical research. Results The appearance of the model is clear and vivid, and the geometrical similarity is good. The established cervical-thorax junction finite element model can be verified, and basically in line with the results of in vitro biomechanical experiments, further various cervical and thoracic junction finite element mechanics analysis. Conclusion It provides a convenient and accurate method for clinicians to establish the three-dimensional finite element model of the cervical spine and neck junction. The established model has high authenticity and can be used in further biomechanical analysis experiments.