用立体腹腔镜进行斑点照明空间频率域成像,用于配置校正的光学属性映射
Anthony A Song1, Mason T Chen1, Taylor L Bobrow1
1The Johns Hopkins University, Department of Biomedical Engineering, Baltimore, Maryland, United States.
Journal of biomedical optics
|January 27, 2025
概括
这项研究引入了用于空间频域成像 (SFDI) 的紧型腹腔镜系统,以映射组织光学特性,改善微创手术中的外科指导.
科学领域:
- 生物医学光学 生物医学光学
- 手术技术 手术技术
- 医疗成像医学成像
背景情况:
- 由于对比度差,腹腔镜手术难以可视化组织边缘.
- 光学特性提供独特的组织识别,以加强外科手术指导.
- 现有的空间频域成像 (SFDI) 很难在腹腔镜中实现.
研究的目的:
- 开发一个紧的腹腔镜系统用于定量光学属性映射.
- 为了实现精确的内源对比,在微创手术期间识别组织类型.
主要方法:
- 开发了一种集成立体深度估计和斑点照明SFDI (si-SFDI) 的双摄像头腹腔镜.
- 通过639nm激光生成的高对比度斑点图案被成像.
- 对于复杂的几何形状,3D 形状测量纠正了光学属性测量.
主要成果:
- laparoscopic si-SFDI测量结果与平面幻影的常规SFDI很好地一致 (6.4%的吸收误差,5.8%的散射误差).
- 轮校正提高了复杂几何形状的准确性,将吸收误差降低了23.7%.
- 在体内研究验证了系统的准确性和检测生理变化的能力.
结论:
- 开发的立体-镜si-SFDI系统为各种几何形状提供了准确的光学属性映射.
- 这项技术在微创手术中提供了定量内源对比的潜力.
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