Study on the Effect of Blood Scattering on the Variety of Equivalent Path-Length in Dynamic Spectra Measurement
WANG Yan1, 2,LI Gang1*,LIN Ling1,LIU Yu-liang1,LI Xiao-xia1, 3
1. College of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China 2. Liaoning Technical University, Fuxin 123000, China 3. School of Electrical and Automatic Engineering, Hebei University of Technology, Tianjin 300130, China
Abstract：Dynamic spectrum (DS) can be used to eliminate the individual discrepancy of tissues theoretically except the pulsatile component of the artery blood (PCAB). One of the systematic errors in the calculation of the component changes from NIRS data of the dynamic spectrum is the absolute magnitudes and relative differences in path-length factors as a function of wavelength. Monte Carlo simulations are used in the present paper to examine the importance and mitigation methods of this error while the photoelectric pulse wave is detected on the finger tip. The measure accuracy of the DS method is evaluated by error analysis.
Key words：Dynamic spectrum;Monte Carlo simulations;Scattering;Mean path length;Non-invasive;Blood component
王焱1，2,李刚1*,林凌1,刘玉良1,李小霞1，3. 动态光谱检测中血液散射对等效光程长变化的影响[J]. 光谱学与光谱分析, 2007, 27(01): 91-94.
WANG Yan1, 2,LI Gang1*,LIN Ling1,LIU Yu-liang1,LI Xiao-xia1, 3 . Study on the Effect of Blood Scattering on the Variety of Equivalent Path-Length in Dynamic Spectra Measurement. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(01): 91-94.
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