摘要
目的螺旋CT扫描获取腕舟骨表面轮廓信息,为快速成型技术的个体化人工腕舟骨假体研究奠定基础。方法采用螺旋CT对健康成年人双侧腕关节进行层厚0.625mm扫描,获取腕关节DICOM格式文件,导入MIMICS 10.0软件进行腕舟骨三维重建。结果实现了CT图像信息的矢量转换,获得了腕舟骨三维实体模型。结论由螺旋CT数据进行腕舟骨外形轮廓的矢量化重建,可获得精确的腕舟骨三维实体模型,为腕舟骨假体计算机辅助设计和快速成型制造提供理论依据;对医学图像信息的矢量转换简便易行,在骨科生物制造领域有较好的应用前景。
Objective To achieve three dimensional(3D) contour image of scaphoid for fabricating custom -made artificial scaph- old-prosthesis. Methods The ambi-wrist jionts of healthy adult were scanned with spiral X-ray computed tomography with 0. 625mm thick slice,obtain the formatting documents of DICOM,and reconstruct three-dimensional tereo-models of seaphoid with MIMICS10.0. Results The 3D contour image of scaphoid presented was edited and processed easily for the computer aided design (CAD) of custom-made artificial seaphoid. Conclusion The 3D contour image of scaphoid can be obtained by spiral CT scanning, and the digitized data can be applied directly to CAD of custom-made artificial implant and subsequently rapid prototyping fabricating. In addition, the reconstruct ionmethod is simple and can be applied widely to clinical implant fabricating practice of orthopaedics
出处
《重庆医学》
CAS
CSCD
2008年第19期2146-2147,共2页
Chongqing medicine
基金
重庆市自然科学基金(CSTS
2006BB5032)
重庆市留学人员科技资助项目
重庆市卫生局重点课题
关键词
个体化
舟骨假体
计算机辅助
快速成型
individuation
scaphoid-implant
computer-assisted
rapid prototyping