中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (48): 8939-8942.doi: 10.3969/j.issn.1673-8225.2011.48.003

• 数字化骨科 digital orthopedics • 上一篇    下一篇

腰椎间盘膨出节段数字模型及三维可视化

李孝林，任伯绪   

  1. 长江大学医学院，湖北省荆州市434023
  • 收稿日期:2011-04-28 修回日期:2011-09-26 出版日期:2011-11-26 发布日期:2011-11-26
  • 通讯作者: 任伯绪，硕士，教授，长江大学医学院，湖北省荆州市434023 boxuren@yahoo.com.cn
  • 作者简介:李孝林☆，男，1976年生，湖北省公安县人，汉族，2009年湖北中医药大学毕业，博士，副教授，主要从事骨科生物力学研究。 peterlee869@163.com
  • 基金资助:

    湖北省教育厅资助项目(D20101311)，长江大学博士启动基金课题，课题名称：不同坐姿持续坐立对膨出椎间盘影响的有限元研究。

Digital model and three-dimensional visualization of lumbar disk bulging segment

Li Xiao-lin, Ren Bo-xu   

  1. Medical School of Yangtze University, Jingzhou  434023, Hubei Province, China
  • Received:2011-04-28 Revised:2011-09-26 Online:2011-11-26 Published:2011-11-26
  • Contact: Ren Bo-xu, Master, Professor, Medical School of Yangtze University, Jingzhou 434023, Hubei Province, China boxuren@yahoo.com.cn
  • About author:Li Xiao-lin☆, Doctor, Associate professor, Medical School of Yangtze University, Jingzhou 434023, Hubei Province, China
  • Supported by:

    Educational Commission of Hubei Province of China, No. D20101311*; Project of Doctoral Fund of Yangtze University*

PDF

355

被引次数

1

摘要：

背景：从生物力学入手研究腰椎间盘膨出意义重大。
目的：探讨构建腰椎间盘膨出节段数字模型及三维可视化研究方法。
方法：基于L3~4的16排螺旋CT连续断层114层二维图像，Mimics软件分别对腰椎骨性结构及各种软组织进行重建，并导入有限元分析软件进行模型验证。
结果与结论：建立了L3~4间盘膨出节段三维数字模型，包括两个椎体、终板、纤维环、髓核及6种韧带，数字模型外形逼真，实体感强，可进行三维测量、复位、手术模拟以及输出用作CAD(计算机辅助设计)，RP(快速成型)及FEA(有限元分析)研究。说明薄层CT，Mimics 软件阈值分割、区域增长使数字模型的建立更为精确、快捷，数字模型可被输出用于进一步研究。

关键词: 腰椎间盘膨出, CT图像, 数字模型, 可视化, 阈值分割

Abstract:

BACKGROUND: The biomechanical study of lumbar disk bulging is significant.
OBJECTIVE: To investigate the digital model and three-dimensional visualization of lumbar disk bulging segment.
METHODS: Bone structure and various soft tissues of the lumbar spine were reconstructed by Mimics software based on 16-slice spiral CT continuous two-dimensional 114 images of L3-4 segments. The models were verified by introduced finite element analysis software.
RESULTS AND CONCLUSION: The established three-dimensional digital model of lumbar disk bulding segment included two vertebral bodies, endplate, annulus fibrosus, nucleus pulposus and six types of ligaments. The digital model could be used for research of three-dimensional measurement, reduction, surgical simulation, output as computer aided design, rapid prototyping, and finite element analysis based on its natural appearance and strong entity. It is indicated that thin-layer CT and Mimics software ensure more accurate and rapid establishment of digital model in order to facilitate further research.

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