通过计算机断层扫描成像获得的前额头骨底部表面的准确性
Maurus Kurt Jaeggi1,2, Mohammed Ghamri2,3, Konstantinos Dritsas2
1Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.
Scientific reports
|July 7, 2025
概括
低辐射圆束计算机断层扫描 (CBCT) 扫描准确地创建3D前脑底部模型,与标准CT扫描相提并论. 这为面评估提供了一个更安全,更低剂量的成像替代方案.
科学领域:
- 医疗成像医学成像
- 放射学 放射学是一门学科.
- 头骨面部解剖学 头骨面部解剖学
背景情况:
- 精确的计算机断层扫描 (CT) 扫描对于诊断和尽量减少辐射暴露至关重要.
- 前底部的3D表面模型对于评估面形态是必不可少的.
- 评估成像设备的准确性对于临床和研究应用至关重要.
研究的目的:
- 通过不同的成像设备和协议生成的3D前骨基模型的准确性.
- 为了比较低辐射圆束CT (CBCT) 与传统CT和光学扫描的精度.
- 为了确定低剂量成像对面形态学的可靠性.
主要方法:
- 使用两台CBCT扫描仪 (包括低辐射协议),CT扫描仪和光学扫描仪扫描了10个人类头骨.
- 在成像过程中,充满水的头模拟了软组织.
- 使用平均绝对距离 (MAD) 测量精度,通过将细分模型与参考扫描进行比较.
主要成果:
- 3D模型在重复分割中显示出高一致性 (差异<0.09毫米).
- 低辐射CBCT模型的准确性与传统CT扫描相提并论 (MAD中位数为0.12毫米).
- 在成像设备或协议之间没有发现显著的精度差异.
结论:
- 低辐射CBCT协议可靠地产生精确的3D前额头基模型.
- 这项技术提供了一种更安全,更低剂量的替代传统CT用于面评估.
- 研究结果支持在临床和研究环境中使用降低剂量成像,而不会影响准确性.
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