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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 11 — Nov. 10, 2005
  • pp: 659–661

Determination of optimal source-detector separation in measuring chromophores in layered tissue with diffuse reflectance

Yunhan Luo, Houxin Cui, Xiaoyu Gu, Rong Liu, and Kexin Xu  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 11, pp. 659-661 (2005)


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Abstract

Based on analysis of the relation between mean penetration depth and source-detector separation in a three-layer model with the method of Monte-Carlo simulation, an optimal source-detector separation is derived from the mean penetration depth referring to monitoring the change of chromophores concentration of the sandwiched layer. In order to verify the separation, we perform Monte-Carlo simulations with varied absorption coefficient of the sandwiched layer. All these diffuse reflectances are used to construct a calibration model with the method of partial least square (PLS). High correlation coefficients and low root mean square error of prediction (RMSEP) at the optimal separation have confirmed correctness of the selection. This technique is expected to show light on noninvasive diagnosis of near-infrared spectroscopy.

© 2005 Chinese Optics Letters

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(300.0300) Spectroscopy : Spectroscopy

Citation
Yunhan Luo, Houxin Cui, Xiaoyu Gu, Rong Liu, and Kexin Xu, "Determination of optimal source-detector separation in measuring chromophores in layered tissue with diffuse reflectance," Chin. Opt. Lett. 3, 659-661 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-11-659

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