基于飞行时间方法的生物组织的非接触氧化评估
Jingjing Jiang1, Letizia Lanini2, Djazia Yacheur2
1Biomedical Optics Research Laboratory (BORL), Department of Neonatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland. jingjing.jiang@usz.ch.
Advances in experimental medicine and biology
|January 23, 2026
概括
这项研究引入了一种新的飞行时间 (ToF) 方法,用于非接触性组织氧化评估. 该技术准确地测量氧和和距离,这对于医疗应用至关重要.
科学领域:
- 生物医学光学 生物医学光学
- 医疗器械 医疗器械 医疗器械
- 光子学 是一个光子学.
背景情况:
- 准确评估生物组织氧和度对于许多医疗应用至关重要.
- 无接触测量方法在临床环境中非常理想,例如紧急护理和图像引导手术,以简化程序.
- 近红外光谱是组织氧化的关键技术,但由于光散射和精确的距离估计,非接触测量面临挑战.
研究的目的:
- 为了利用飞行时间 (ToF) 传感器,准确,无接触地确定生物组织氧化 (光学特性) 和距离.
- 为了克服在生物组织中散射的局限性,用于精确的近红外测量.
主要方法:
- 为高度散射物体量身定制的基于模型的直接ToF (DToF) 模型的开发.
- 进行模拟研究以确定光学特性和距离.
- 使用模仿组织的幻影在不同距离 (30厘米和62厘米) 和多光谱ToF测量时进行实验验证.
主要成果:
- 检索的光学属性和距离显示出高精度,与参考参数相比,平均误差小于0.5%.
- 多光谱ToF测量成功验证了模拟结果.
- DToF方法对散射物体的光学特性表现出敏感性.
结论:
- 基于模型的直接ToF方法已成功开发,用于精确的,远距离的非接触氧化测量.
- 这种方法显示出在各种临床场景中改善非接触氧化评估的巨大潜力.
- 这些发现为医疗保健中先进的非接触式诊断工具铺平了道路.
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