权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Three dimensional diagnostic system of the jaw morphology in patients with jaw deformity without ionizing radiation by using high resolution MRI.

利用高分辨率 MRI 进行无电离辐射颌骨畸形患者颌骨形态三维诊断系统。

基本信息

批准号：
14571792
负责人：
K.GOTO Tazuko
金额：
$ 1.92万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14571792/
关键词：
MRI jaw morphology Three dimensional diagnosis without ionizina radiation Jaw deformity 無被爆

项目摘要

We accumulate MR data and made the table of data from the patients.We mainly developed the three-dimensional measurement system of jaw morphology.We performed MR examination of two volunteers. We investigated that the most suitable sequence that can show the cortex of the mandible and mandibular canal. Next, we tried to decide the most suitable threshold to reconstruct the three-dimensional images of the jaw. In addition, we discussed the best three-dimensional images 'for the diagnosis in clinic. However, it was difficult to extract the cortex automatically and we had to perform it by manual. We have to continue to investigate whether it will be able to perform automatically or not.We calculated the length, thickness, and the amount of the movement of the bone fragment at the orthognathic surgery.It is now possible to measure the distance on the three dimensional images of the jaw.We investigate the measurement errors by using the custom made phantom and the original made phantoms.We further synthesized the system for the soft tissue and bone. We will try to make the system simple and faster one, and try to use it in the clinic.

我们收集了大量的MR数据，并制作了患者的数据表，重点开发了颌骨形态的三维测量系统，对两名志愿者进行了MR检查。探讨了下颌骨皮质和下颌管的最佳显示序列。其次，我们尝试决定最合适的阈值来重建颌骨的三维图像。此外，还讨论了临床上最佳的三维图像诊断方法。然而，很难自动提取皮层，我们不得不手动执行。我们必须继续研究它是否能够自动执行。我们计算了长度，厚度，正颌外科手术中骨块的移动量和移动量。现在可以在颌骨的三维图像上测量距离。我们研究了使用定制体模和原始体模的测量误差。我们进一步合成了用于软件的系统。组织和骨骼。我们将努力使该系统更简单，更快，并尝试在临床上使用它。