【摘要】 使用快速原型技术,集成CT扫描及其图像处理技术、三维重构技术等于一体,应用于颞下颌骨缺损修复及其手术应用.根据实际的下颌骨缺损案例,在完成下颌骨的修复后,再对其进行三维模型的快速成形,以利于手术过程的腓骨截取与拼接,以保证最佳修复的目的.其中,利用CT图像数据,对螺旋CT扫描得到的DICOM文件进行图像处理,通过阈值选择、区域增长、蒙罩编辑以及计算建模等操作,分离出下颌骨;结合导入的腓骨STL文件,将其与下颌骨缺损段进行拟合,通过修复与优化匹配模型,得到下颌骨修复体的个体化三维模型.更多还原

【Abstract】 Mandibular defect reconstruction is a synthesis subject which integrates rapid prototyping,CT scanning and image processing,3D reconstruction and so on.After the mandibular of factually defected case was modeled with software and reconstructed with fibular,the personal mandibular can be manufactured with RP machine to ensure the best operation affection.Image processing was executed directly on DICOM files scanned from spiral CT,where CT image processing technology was used to separate mandible by the operation of threshold,region growing,masks editing,calculating and so on.Then,fibular STL files were imported into software to fit with the mandible defect region,and the three dimensional model of reconstructed mandible was obtained by model reconstruction and optimization.更多还原