正畸手术模拟与术后容貌预测可视化系统  

Visualizing System for Intra-operative Simulation and Post-operative Facial Appearance Prediction of Orthognathic Surgery

作　　者：施建宇[1,2] 张艳宁[2] 翟培芳[2] 周洪[3] 

机构地区：[1]西北工业大学生命学院,西安710072 [2]西北工业大学计算机学院,西安710072 [3]西安交通大学口腔医院,西安710004

出　　处：《系统仿真学报》2010年第8期1986-1991,共6页Journal of System Simulation

基　　金：国家自然科学基金(60472072);陕西科技计划项目(2004K05-G23);新世纪高校优秀人才(NCET-05-08661);中国博士后科学基金(20070421130)

摘　　要：为获得低辐射、低成本和实时性等性能,开发了一个正畸手术模拟与术后容貌预测可视化系统。通过采集三张正交X线片和一个三维面部网格模型,该系统使用特定的配准技术,利用径向基变形算法,采用一种基于棱柱的三角网格分割算法,实现了头骨重建,模拟了复杂的截骨术,完成了头骨与面部的匹配,并预测了术后患者容貌。临床病例的仿真实验表明本系统可为正畸医生制定手术计划和实施手术提供帮助。In order to get surgical simulation with lower radiation,less cost and real time operation,a visualizing system for intra-operative simulation and post-operative facial appearance prediction of orthognathic surgery was developed.By acquiring radiographs of three orthogonal views and facial mesh data,using a specialized registration procedure,applying mesh deformation algorithm based on radial basis function interpolation,exploiting a novel mesh cutting algorithm based on prism,the system reconstructed the patient＇s skull,simulated complex osteotomies,aligned reconstructed skull and face,and finally predicted post-operative facial appearance of patient.The simulation result to a clinical patient shows that the proposed system can be an assist of orthognathic surgeon to make preoperative plan and execute intra-operative procedure.

关 键 词：正畸手术 X线片 截骨术 容貌预测 可视化 网格分割 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]