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Recovery of hemoglobin oxygen saturation and intrinsic fluorescence with a forward-adjoint model

机译:用前向伴随模型恢复血红蛋白氧饱和度和固有荧光

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摘要

We present two forward-adjoint models for recovering intrinsic fluorescence spectra and hemoglobin oxygen saturation of turbid samples. The first fits measured diffuse reflectance spectra to obtain the absorption and scattering spectra of the medium, and these are then used to correct distortions imposed on the fluorescence spectrum by absorption and scattering. The second fits only the measured fluorescence spectrum to determine simultaneously the amplitudes of absorption and fluorescence basis spectra and scattering parameters. Both methods are validated with Monte Carlo simulations and experimentally in scattering phantoms containing nicotinamide adenine dinucleotide and human erythrocytes. Preliminary measurements from murine tumors in vivo are presented.
机译:我们提出了两个正向伴随模型,用于恢复浑浊样品的固有荧光光谱和血红蛋白氧饱和度。首先拟合测量的漫反射光谱以获得介质的吸收和散射光谱,然后将它们用于校正由于吸收和散射而施加在荧光光谱上的畸变。第二个仅拟合测量的荧光光谱,以同时确定吸收光谱和荧光基础光谱的振幅以及散射参数。两种方法均已通过Monte Carlo模拟验证,并在散射包含烟酰胺腺嘌呤二核苷酸和人类红细胞的模型中进行了实验验证。提出了从小鼠体内肿瘤的初步测量。

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