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    • 8. 发明申请
    • METHOD AND APARATUS FOR SPECTROSCOPIC TISSUE ANALYTE MEASUREMENT
    • 光谱组织分析法测定方法及其应用
    • WO2008112135A3
    • 2008-11-27
    • PCT/US2008003014
    • 2008-03-06
    • NELLCOR PURITAN BENNETT LLCBAKER JR CLARK RDURR NICHOLAS JMOGRI MURTAZAHOARAU CARINEOSTROWSKI RAFAELDEBRECZENY MARTIN P
    • BAKER JR CLARK RDURR NICHOLAS JMOGRI MURTAZAHOARAU CARINEOSTROWSKI RAFAELDEBRECZENY MARTIN P
    • A61B5/00
    • A61B5/0059A61B5/4869A61B5/4878
    • Methods and systems for calculating body fluid metrics are provided. In accordance with an exemplary embodiment of the present technique, there is provided a method (50) for calculating body fluid metrics by acquiring an absorbance spectrum of a subject's tissue over a range of near-infrared light (56), performing a multi-linear regression of the absorbance spectrum of the subject's tissue in relation to absorbance spectra of tissue constituents (60), and calculating body fluid metrics based on the results of the multi-linear regression (66). A system (20) is provided having a sensor (24) for emitting the light into the subject's tissue and detecting reflected, scattered, or transmitted light, a spectrometer (40) for processing the detected light and generating the absorbance spectrum of the subject's tissue, memory (44) for storing absorbance spectra of the tissue constituents and a multi-linear regression model, and a processor (42) for performing the multi-linear regression and calculating the body fluid metrics.
    • 提供了用于计算体液指标的方法和系统。 根据本技术的示例性实施例,提供了一种用于通过在一定范围的近红外光下采集对象组织的吸收光谱来计算体液度量的方法(50)(56),执行多线性 对象组织的吸收光谱相对于组织成分(60)的吸收光谱的回归,以及基于多元线性回归(66)的结果计算体液量度。 提供了一种系统(20),其具有用于将光发射到对象组织中并检测反射,散射或透射光的传感器(24),用于处理检测到的光并产生对象组织的吸收光谱的光谱仪(40) ,用于存储组织成分的吸收光谱的存储器(44)和多线性回归模型,以及用于执行多线性回归和计算体液指标的处理器(42)。