In vivo determination of skin near-infrared optical properties using diffuse optical spectroscopy

Sheng Hao Tseng, Alexander Grant, Anthony J. Durkin

研究成果: Article同行評審

103 引文 斯高帕斯(Scopus)

摘要

We develop a superficial diffusing probe with a 3mm source-detector separation that can be used in combination with diffuse optical spectroscopic (DOS) methods to noninvasively determine full-spectrum optical properties of superficial in vivo skin in the wavelength range from 650 to 1000nm. This new probe uses a highly scattering layer to diffuse photons emitted from a collimated light source and relies on a two-layer diffusion model to determine tissue absorption coefficient μ a and reduced scattering coefficient μ s . By employing the probe to measure two-layer phantoms that mimic the optical properties of skin, we demonstrate that the probe has an interrogation depth of 1 to 2mm. We carry out SSFDPM (steady state frequency-domain photon migration) measurements using this new probe on the volar forearm and palm of 15 subjects, including five subjects of African descent, five Asians, and five Caucasians. The optical properties of in vivo skin determined using the superficial diffusing probe show considerable similarity to published optical properties of carefully prepared ex vivo epidermis+dermis.

原文English
文章編號014016
期刊Journal of Biomedical Optics
13
發行號1
DOIs
出版狀態Published - 2008

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 生物材料
  • 原子與分子物理與光學
  • 生物醫學工程

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