MULTIVARIATE METHODS FOR BLOOD ANALYTE MEASUREMENTS USING NIR RAMAN

我们正在开发两种基于近红外拉曼的光学方法 乳腺癌光谱学和荧光光子迁移研究 诊断和成像。 拉曼光谱，一种原位技术， 组织化学分析，可以通过光纤针进行 作为针吸或芯的一部分插入乳房的探针 活检 荧光光子迁移正被开发为 用于定位病变的光学断层摄影技术。 我们设想 这两种技术可以结合起来， 首先用于定位可疑病变，而拉曼信息， 通过使光纤探针穿过活检针获得，然后 用于准确诊断。 今年，我们展示了 拉曼准确分类正常、良性和恶性的能力 利用830 nm的光。 我们还证明了光子 迁移成像可用于精确定位小的荧光 对象嵌入在一个厚trubid介质与现实的光学 性能，从而证明了这种技术的潜力， 光学成像

We are developing two optical methods based on near infrared Raman spectroscopy and fluorescence photon migration for breast cancer diagnosis and imaging. Raman spectroscopy, an in situ technique for histochemical analysis, can be implemented via a fiber optic needle probe inserted into breast as part of needle aspiration or core biopsy. Fluorescence photon migration is being developed as an optical tomographic technique for localizing lesions. We envision that the two techniques can be integrated, with fluorescence imaging first to used to localize a suspicious lesion, and Raman information, obtained by passing a fiber optic probe through a biopsy needle, then used for accurate diagnosis. In the current year, we demonstrated the ability of Raman to classify accurately normal, benign, and malignant tissues by utilizing 830 nm light. We also showed that photon migration imaging can be used to localize accurately small fluorescent objects imbedded in a thick trubid m edium with realistic optical properties, thus demonstrating the potential of this technique for optical imaging.