中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (26): 4768-4772.doi: 10.3969/j.issn.1673-8225.2011.26.005

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

股骨头坏死病灶清除计算机辅助系统配准模块和导航模块的建立

张建国1，杨庆铭2   

  1. 1上海应用技术学院机械工程学院，上海市 201418
    2上海交通大学医学院附属瑞金医院骨科，上海市  200025
  • 收稿日期:2011-02-26 修回日期:2011-05-04 出版日期:2011-06-25 发布日期:2011-06-25
  • 作者简介:张建国☆，男，1979年生，江苏省常熟市人，汉族，2009年上海交通大学毕业，博士，讲师，主要从事计算机辅助临床工程、医学图像数据处理与分析研究。 jgzhang98328@163.com
  • 基金资助:

    上海市科学技术委员会科技攻关计划重点项目(045115002)：多系列手术专用软件系统研发及其在骨科应用；上海高校选拔培养优秀青年教师科研专项基金(yyy10022)：数字几何处理相关技术研究及其在反求工程中的应用；上海应用技术学院引进人才科研启动项目(YJ2010-15)：数字几何处理技术研究及其在计算机辅助手术中的应用。

Realization on registration and navigation module of the surgery system for avascular necrosis of the femoral head

Zhang Jian-guo1, Yang Qing-ming2   

  1. 1School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai  201418, China
    2Department of Orthopaedics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai  200025, China
  • Received:2011-02-26 Revised:2011-05-04 Online:2011-06-25 Published:2011-06-25
  • About author:Zhang Jian-guo☆, Doctor, Lecturer, School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, China jgzhang98328@163.com
  • Supported by:

    the Key Technologies Research and Development Program of Shanghai Science and Technology Commission, No. 045115002*; Science Foundation for the Excellent Youth Scholars of Higher Education of Shanghai, No. yyy10022*; Scientific Research Start-up Project for Introduced Talents of Shanghai Institute of Technology, No.YJ2010-15*

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430

被引次数

1

摘要：

背景：股骨头坏死的传统治疗方法首先要进行病灶清除，这个过程手术时间长，很难彻底清除病灶且容易损伤正常骨组织。
目的：建立股骨解剖结构的几何模型，并在此基础上开发股骨头缺血性坏死病灶清除计算机辅助系统的配准模块和导航模块。
方法：首先应用MC算法，建立股骨解剖结构的几何模型；然后应用点和表面相结合的配准方法进行患病股骨与股骨几何模型之间的配准；最后进行了股骨头坏死病灶清除计算机辅助软件系统的设计，并对整个系统的精度进行实验验证。
结果与结论：开发的股骨头坏死病灶清除计算机辅助软件系统的误差在3 mm以下，基本满足该类骨科手术的精度要求。

关键词: 股骨头坏死, 病灶清除, 计算机辅助, 几何建模, 配准, 软件设计

Abstract:

BACKGROUND: Traditional treatment for femoral head necrosis is debridement surgery. This surgery is difficult to clear the lesions completely and easy to damage the normal tissue. The image guided surgery improves surgical quality by medical images, tracking system and virtual display.
OBJECTIVE: To construct a mathematical model of the femur and then develop a surgery system for avascular necrosis of femoral head.
METHODS: On the basis of MC algorithm, a mathematical model of the femur is constructed. Point data were fitted to geometric primitives by using geometric features including point-based registration and surface-based registration. The interactive function between two-dimensional and three-dimensional image is realized.
RESULTS AND CONCLUSION: Experiments shows that the surgery system for avascular necrosis of the femoral head developed in this paper meets the requirements of orthopedic surgery because its error is less than 3 mm.

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