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在1200nm的光谱光学连贯性断层扫描用于脂质检测
Vivek Kuttippurath1, Nuria Slijkhuis1, Shengnan Liu1
1Erasmus University Medical Center, Department of Cardiology, Rotterdam, The Netherlands.
Journal of biomedical optics
|September 11, 2023
概括
一个新的1200nm光谱光学连贯性断层扫描 (SOCT) 系统有效地区分了基于脂质的样本和基于水的样本. 这一进步允许在高分辨率成像的同时进行增强的化学成分分析.
科学领域:
- 生物医学光学 生物医学光学
- 频谱学是一种光谱学.
- 医疗成像医学成像
背景情况:
- 光学连贯断层扫描 (OCT) 提供高分辨率图像,但往往缺乏详细的化学信息.
- 商业的OCT系统可能不会使用最佳波长来通过吸收来识别脂质.
研究的目的:
- 开发一个1200nm光谱OCT (SOCT) 系统.
- 通过分析1210nm脂质吸收峰值,使脂质和水基样品的分类成为可能.
主要方法:
- 开发了一种1200nm的OCT系统,能够同时获取光谱和结构数据.
- 实现了对潜结构差异分析 (OPLS-DA) 模型进行分类的直角投影.
- 使用具有或没有脂质吸收特征的弱散射幻影验证了系统.
主要成果:
- 实现了轴分辨率和95dB的灵敏度.
- OPLS-DA模型在分类脂质和水性吸收特征方面表现出高准确度.
- 在20个验证样本中成功分类了19个.
结论:
- 1200nm SOCT 系统可靠地将含脂样品与水样样品区分开来.
- 该系统显示出基于光谱数据的样本分类的强大预测能力.
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