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在牙组织内对金属氧化物颗粒的多能X射线成像

Jarrod Cortez¹, Ignacio Romero², Jason Ngo²

¹Quantitative and Systems Biology, University of California, Merced, CA, USA.

Journal of X-ray science and technology

|November 19, 2023

概括

一个新的成像系统可以检测与异体牙炎 (FBG) 相关的微小金属氧化物颗粒. 这项技术有助于通过提高图像清晰度和区分颗粒类型来识别牙科问题.

科学领域:

* 生物医学成像技术
* * 材料科学是一种材料科学.
* 牙科病理学牙科病理学

背景情况:

*牙周病影响全球50%以上的人口,牙炎是早期症状.
*外体牙炎 (FBG) 可能是由于接触牙科产品或食品中的金属颗粒而引起的.
* 早期检测引起FBG的颗粒对于预防牙周病的进展至关重要.

研究的目的:

* 设计和验证一种新的,便携的,负担得起的多光谱X射线和光光学显微镜成像系统.
* 开发一种新的除尘算法,用于增强粒子检测和分化.
*为了优化成像系统的性能,用于检测牙组织中的金属氧化物颗粒.

主要方法:

* 开发了一个带有聚焦X射线管 (可调节的能量光谱) 和闪光器合光学显微镜的系统.
* 使用GATE软件优化系统参数,如能量带宽和X射线光子数.
* 应用了一种新的无声化方法 (Noise2Sim与双层UNet),以提高模拟图像质量.

主要成果:

* 能够使用特定的X射线源参数和探测器分辨率检测小到0.5微米的粒子.
*通过Noise2Sim算法实现了对比度与噪声比率 (CNR) 的显著改善.
* 经过优化设置,颗粒的CNR从6.78提高到9.72.

结论:

*开发的成像系统成功地检测和区分模拟牙组织中的金属氧化物颗粒.
*新的无雾化算法显著提高了图像质量和粒子检测能力.
* 这项技术对早期诊断和外体牙炎的管理具有前途.

关键词:

一个Denoise,一个Denoise.门户门户门户蒙特卡罗的蒙特卡罗是一个非常好的城市.在X射线成像中使用X射线成像.

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