在CBCT图像中的石和石墨烯皇冠中对文物表达的比较分析来自不同系统的图像
Sâmia Mouzinho-Machado1, Rocharles Cavalcante Fontenele2,3, Fernanda Bulhões Fagundes1
1State University of Campinas, Campinas, Brazil, unicamp.br.
International journal of dentistry
|March 13, 2026
概括
在形光束计算机断层扫描 (CBCT) 中,体冠产生的文物比石墨烯冠产生的文物更多. 优化CBCT协议可以进一步降低这些文物,以获得更好的成像.
科学领域:
- 牙科材料科学 牙科材料科学
- 放射学 放射学是一门学科.
- 生物医学成像学 生物医学成像学
背景情况:
- 圆束计算机断层扫描 (CBCT) 对于牙科诊断至关重要.
- 高密度的材料,如石,可以造成显著的文物,影响图像的准确性.
- 像石墨烯这样的新兴材料为人工制造物减少提供了潜力.
研究的目的:
- 为了使用CBCT比较石和石墨烯增强皇冠中的文物表达.
- 为了评估体积变化,表面扭曲和一般的工件生成.
- 评估不同CBCT系统和采集协议的影响.
主要方法:
- 使用了三种CBCT系统 (3D Accuitomo 170,NewTom VGi evo,Veraview X800) 进行了测试.
- 石和石墨烯的冠冕被放置在一个人形幻影上.
- 测试了三个采集协议 (中等FOV/标准分辨率,小FOV/标准分辨率,小FOV/高分辨率).
- 图像分析涉及细分,体积/表面积计算和RMSE用于文物评估.
主要成果:
- 与石墨烯皇冠相比,晶皇冠的体积变化,表面扭曲和一般文物明显高 (p < 0.05).
- 与小FOV/SR (p <0.05) 相比,使用中等FOV协议的Veraview X800系统导致了更大的文物表达.
结论:
- 在CBCT成像中,石墨烯皇冠在CBCT成像中与石相比,显示出较少的工件.
- 优化CBCT采集协议可以独立地最大限度地减少文物和表面扭曲.
- 材料选择和协议优化是改善牙科修复中CBCT成像质量的关键.
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