基于3D打印的人体腰椎骨的三维建模研究

Three-Dimensional Reconstruction of Human Lumbar Vertebrae Based on 3D Printing

目的对人体腰椎骨进行三维重建,通过骨骼的实体打印,帮助临床医生更加清晰的观察病变。方法以螺旋CT扫描图像为原始数据,利用MIMICS软件完成人体腰椎的三维建模,经过曲面处理、曲面优化,在快速原型机(3D打印机)中实现人体骨骼的制造。分析有限元模型,观察模型骨骼的力学形变情况。结果经MIMICS重建所得三维模型可在形态学和力学上较好地还原显示腰椎骨状态。结论相较于传统的CT断层图像,此建模方法高度还原了真实骨骼状态,获得的实体模型既能用于医疗教学,也可为骨骼材料的研发奠定基础,有重要的实用价值。

Objective To reconstruct human lumbar vertebral bone model in three-dimensional,and to help clinicians observe lesions more clearly through printing the bone.Methods Using spiral CT scanned images as raw data,the three-dimensional model of human lumbar spine was built by MIMICS software.After surface processing and surface optimization,the human skeleton was manufactured in the rapid prototyping machine(3D printer).The finite element model was analyzed and the mechanical deformation of the model skeleton was observed.Results The three-dimensional model reconstructed by MIMICS was able to display the lumbar vertebral state in morphology and mechanics.Conclusion Compared with the traditional CT tomography,this method can restore the true skeletal state highly.The solid model obtained can be used in medical teaching,and also lay a foundation for the development of bone materials,which has important practical value.