基于CBCT的体绘制可视化技术在上颌后牙区种植术前评估中的应用

发布时间：2018-01-28 14:28

本文关键词： 容积重建医学可视化牙槽骨骨测量种植　出处：《口腔医学研究》2017年04期 　论文类型：期刊论文

【摘要】：目的:研发基于CBCT容积数据的体绘制可视化技术,并对拟行上颌磨牙区种植的患者的种植区域进行三维演示,以期提高对此类患者种植区骨量及上颌窦情况术前评估的直观性。方法:将经临床筛选的13例上颌后牙种植患者使用CBCT扫描所获得的原始DICOM数据分别导入NNT 2.19(J.MoritaManufacturing Corp.)软件及本项目组研发的三维可视化软件(TooMax 1.0),分别测量牙槽嵴顶至上颌窦底的高度(H1)、种植区牙槽骨颊腭向宽度(H2),对两种软件测量的骨量进行统计学分析,同时在TooMax中使用体绘制可视化技术显示上颌窦形态及位置以及二维骨量测量值在牙槽骨内的空间位置。结果:用两种软件测量的13例上颌后牙种植患者的骨量测量不具有显著性差异,同时可视化技术可以将不同测量值在上颌骨内的三维空间位置实时显示及变换,便于医患交流,并辅助种植方案的设计。结论:体绘制可视化技术提升了CBCT技术对种植骨量评估的直观性,具有一定的种植模拟的效果,有助于实现可视化临床治疗目标。
[Abstract]:Objective: to develop the visualization technology of volume rendering based on CBCT volume data and to demonstrate the implant area of patients with maxillary molars. In order to improve the preoperative evaluation of bone mass and maxillary sinus in this kind of patients. Methods:. The original DICOM data obtained from 13 clinically selected maxillary posterior dental implants using CBCT scanning were imported into NNT 2.19 (. J. Morita Manufacturing Corp.and the 3D visualization software developed by the project team, TooMax 1.0). The height of alveolar ridge from the top of alveolar ridge to the bottom of maxillary sinus was measured, and the width of buccal and palatine of alveolar bone in planting area was measured. The bone mass measured by two kinds of software was statistically analyzed. At the same time, volume rendering visualization technique was used in TooMax to display the shape and position of maxillary sinus and the spatial position of two-dimensional bone mass measurement in alveolar bone. There was no significant difference in bone mass in 13 patients with maxillary posterior tooth implantation measured by two kinds of software. At the same time, the visualization technology can display and transform the different measurement values in the three-dimensional position of the maxilla in real time, which is convenient for the communication between doctors and patients. Conclusion: the visualization technology of volume rendering can enhance the visualization of CBCT technology to evaluate the implant bone mass, and has a certain effect of seeding simulation. It is helpful to realize the goal of visual clinical treatment.
【作者单位】：南京大学医学院附属口腔医院南京市口腔医院口腔颌面医学影像科;南京大学医学院附属口腔医院南京市口腔医院种植科;
【基金】：江苏省自然科学基金面上项目(编号:BK20141083) 江苏省南京市医学科技发展重点项目(编号:ZKX14049) 江苏省南京市卫生青年人才(编号:QRX11264)
【分类号】：R783.6
【正文快照】： 口腔锥形束CT(Cone Beam Computed Tom-ography,CBCT)是近十余年来新出现的一种牙科专用CT,锥形束CT的出现大大改变了传统口腔科成像的技术手段,对口腔颌面影像的发展起着巨大的推动作用[1,2]。作为牙齿缺失修复的重要手段,口腔种植的技术优势与修复效果已经日益得到临床广泛

【参考文献】