探索光电子集成圆束计算机断层扫描下巴跟踪系统的有效性
Hayo C van der Helm1, Arjan J A Dieters1,2, Pieter U Dijkstra3,4,5
1Department of Orthodontics, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
Journal of clinical medicine
|June 28, 2023
概括
这项研究评估了形束计算断层扫描 (CBCT) 部运动跟踪的准确性. 4D-Jaw Motion模块显示出局限性,结果不符合精确下部运动分析的预定义有效性标准.
科学领域:
- 生物医学工程 生物医学工程
- 牙科成像 牙科成像 牙科成像
- 生物力学 生物力学
背景情况:
- 圆束计算机断层扫描 (CBCT) 扫描仪提供部运动跟踪功能,可可视化,记录和分析下部运动.
- 在CBCT扫描仪中的4D部运动 (4D-JM) 模块为动态部运动分析提供了一个潜在的工具.
研究的目的:
- 为了研究ProMax 3D Mid CBCT扫描仪的4D-Jaw Motion (4D-JM) 模块的体外有效性.
- 为了评估4D-JM模块在跟踪下和上运动中的准确性,与黄金标准相比.
主要方法:
- 利用了三个干燥的人类头骨与CBCT扫描作为黄金标准在八个下巴位置.
- 采用3D打印的牙晶片来准确定位下.
- 使用4D-JM跟踪装置记录下部位置,并通过计算坐标差异,将结果的3D模型与黄金标准模型进行比较.
主要成果:
- 在0.6毫米值范围内,4D-JM模块在10%的下部和90%的上部实现了有效性.
- 垂直下开口的增加与黄金标准和4D-JM 3D模型之间的较大差异相关.
- 最小的下跟踪差异是在x轴上观察到的.
结论:
- 根据研究的预定义标准,4D-Jaw Motion模块的有效性被认为是不可接受的.
- 4D-JM模块需要进一步改进,以确保精确的部运动跟踪,特别是更大的垂直部开口.
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