Development of a simulator for educational oral surgery using virtual reality

使用虚拟现实开发口腔外科教育模拟器

基本信息

批准号：
08557115
负责人：
SUGAHARA Toshio
金额：
$ 12.54万
依托单位：
OKAYAMA university (1997-1998)Osaka University (1996)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08557115/
关键词：
virtual reality surgical simulator oral surgery CT three-dimensional model 手術シュミレーター

项目摘要

In 1996 and 1997, basic problems were studied for construction of a simulator for orthognathic surgery The programs of sulerimposition of the (lata for frontal and lateral cephalograms, CT and dental casts were developed. Using the programs, the coordinate system delineated by the cephalograms could be applied to the data for CT and dental casts, and these three data could be observed in the same coordinate system. Subsequently, construction of simulator for orthognathic surgery, especially sagittal split ramus osteotomy, was tried in 1998, using AVS Medical viewer of graphics workstation.Region growing technique was used for extraction of the mandible. A voxel model was then made with the data for cancellous bone, so this model could be applied to complex simulation. A threshold value was defined as 200 Hounsfield units. Formerly, osteotomy could be simulated in two-dimensions. In this system, osteotomy could be simulated in the maneuver that, reflected actual surgical procedures, inc … More luding saw, bur and osteotome after development. of modules. Consequently, surgical procedures could be simulated in three-dimensional computer graphics. Three-dimensional computer graphics could contain the data for dental casts, and this made it possible to automate shift of lateral bone fragments after splitting with high precision. Furthermore, function of detecting interference between two bone fragments after splitting was developed, and this enabled to analyze bony interference that it was formerly difficult to predict, and this clarified that. bony interference caused various problems.In this system, it. took about. an hour to simulate the osteotomy, and we can apply this system to other surgical procedures after altering osteotomy lines. This system possessed high reality because of three-dimensional graphics with high resolution and use of data with high reliability, and this system possessed satisfactory function of educational simulator. Furthermore, this system would be useful for clinical application including diagnosis and investigation of treatment plan. Less

在1996年和1997年，研究了基本问题，用于构建用于矫形手术的模拟器，开发了（额叶和外侧头皮的LATA的固定程序），开发了CT和牙齿铸件。使用程序，通过程序，可以将数据用于CT和牙科的数据，以及这些数据的相同数据，以及这些数据的相同数据，以及这些数据库的同一数据，以及这些数据的同一数据。在1998年，使用了AVS医学观看图形，用于提取下颌骨模型的模拟器，尤其是矢状手术，尤其是矢状分裂的截骨术。在此系统中，可以在该系统中模拟截骨术，这反映了实际的手术程序，Inc。模块。因此，可以在三维计算机图形上模拟手术程序。三维计算机图形可以包含用于牙齿铸件的数据，这使得在高精度分裂后自动化侧骨碎片的变化成为可能。此外，开发了分裂后两个骨碎片之间的干扰的功能，这使得能够分析奖励干扰以前难以预测，这阐明了这一点。奖励干扰引起了各种问题。在此系统中。走。一个小时来模拟截骨术，我们可以在改变截骨术线后将该系统应用于其他外科手术。由于具有高分辨率和具有高可靠性的数据的三维图形，该系统具有高现实，并且该系统具有教育模拟器的满意度工厂功能。此外，该系统对于临床应用将很有用，包括诊断和治疗计划的研究。较少的