[Study on the effect of blood scattering on the variety of equivalent path-length in dynamic spectra measurement].
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.
Wang
Yan
Y
College of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China.
Li
Gang
G
Lin
Ling
L
Liu
Yu-liang
YL
Li
Xiao-xia
XX
D001158:Arteries / Q000737:chemistry; D001774:Blood Chemical Analysis / Q000379:methods*; D006801:Humans; D009010:Monte Carlo Method; D013057:Spectrum Analysis / Q000379:methods*