基于CT断层数据的仿X线全景图生成技术  

A Method for Generating Dental Panoramic Radiographs from 3D CT Sectional Data

作　　者：祝剑锋[1] 王利生[1] 王伟[1] 黄远亮[2] 郭华艳[2] 

机构地区：[1]上海交通大学自动化系,系统控制与信息处理教育部重点实验室(上海交通大学),上海200240 [2]同济大学附属东方医院口腔科,上海200120

出　　处：《生物医学工程学杂志》2011年第6期1189-1193,1226,共6页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(30570510);973基金资助项目(2010CB732506)

摘　　要：本文提出了一种利用口腔的三维CT断层数据生成牙齿的仿X线全景图的新技术。该技术通过从靠近牙弓面的一个曲面上沿法向量投射仿X线进入三维图像区域而生成牙齿的仿X线全景图。利用该技术可以在口腔的三维CT图像与牙齿的二维全景图之间建立对应关系,有助于克服真实牙X线全景图存在的结构叠加、显示内容不可选择的缺陷。所提出的技术在牙科相关的计算机辅助诊断及手术规划中有重要应用。In this paper, a new method was presented which can generate dental panoramic radiographs from the 3D CT sectional data. The dental panoramic radiograph was generated by casting ray into the 3D sectional data from a curved surface close to the dental arch. With this method, the relationship between the 3D CT sectional data and the dental panoramic radiographs was built, which helped to overcome the defects in the real X-ray panoramic radiographs, such as structure overlap and unselectable content for displaying. The technology is of certain significance in computer aided technique and surgical planning related to dentistry.

关 键 词：全景图 计算机辅助诊断 手术规划 体绘制 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]