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人类牙外生成像使用各种光声成像系统
Vijitha Periyasamy1, Katherine Gisi1, Manojit Pramanik1
1Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
Biomedical optics express
|September 19, 2024
概括
光声学成像为检测牙和可视化牙结构提供了X射线的有希望的替代方案. 这项研究显示了其在没有电离辐射的情况下成像金属填充物和隐藏腔的潜力.
科学领域:
- 生物医学光学 生物医学光学
- 牙科成像技术 牙科成像技术
- 摄影声学成像技术的成像
背景情况:
- 牙损是一个重要的口腔健康问题,通常需要先进的成像来早期检测.
- 传统的牙科X射线具有局限性,包括无法检测隐藏的,以及对电离辐射的担忧.
- 光声学 (PA) 成像为牙科诊断提供了一个非电离的替代方案.
研究的目的:
- 评估牙科应用各种光声成像技术的可行性.
- 为了比较PA成像结果与传统的X射线计算机断层扫描以检测.
- 评估PA成像在可视化牙结构,金属填充物, кариес和色素的能力.
主要方法:
- 声学分辨率光声学显微镜 (ARPAM) 用于用金属填充物对牙进行成像.
- 循环光声学计算机断层扫描 (cPACT) 用于在532nm和1064nm处对牙呈现牙和色素的图像.
- 基于线性阵列的光声学成像 (lPACT) 用于成像牙下和色素,与X射线CT相比测量腔.
主要成果:
- 阿尔帕姆清楚地可视化了牙中的金属填充物及其边界.
- 与532nm相比,1064nm的cPACT图像提供了更好的牙表面表示.
- lPACT成功检测出牙腔,并显示出色素病的高PA信号.
结论:
- 包括ARPAM,cPACT和lPACT在内的光声成像技术证明了牙科成像的可行性.
- PA成像显示潜在的检测隐藏的,可视化金属修复,并评估牙表面特征.
- 这些发现表明PA成像是全面的牙科诊断的可行,非电离替代方案.
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