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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 20 — Jul. 10, 2005
  • pp: 4291–4305

Reflectance spectroscopy for diagnosis of epithelial precancer: model-based analysis of fiber-optic probe designs to resolve spectral information from epithelium and stroma

Dizem Arifler, Richard A. Schwarz, Sung K. Chang, and Rebecca Richards-Kortum  »View Author Affiliations


Applied Optics, Vol. 44, Issue 20, pp. 4291-4305 (2005)
http://dx.doi.org/10.1364/AO.44.004291


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Abstract

Reflectance spectroscopy is a promising technology for detection of epithelial precancer. Fiber-optic probes that selectively collect scattered light from both the epithelium and the underlying stroma are likely to improve diagnostic performance of in vivo reflectance spectroscopy by revealing diagnostic features unique to each layer. We present Monte Carlo models with which to evaluate fiber-optic probe geometries with respect to sampling depth and depth resolution. We propose a probe design that utilizes half-ball lens coupled source and detector fibers to isolate epithelial scattering from stromal scattering and hence to resolve spectral information from the two layers. The probe is extremely compact and can provide easy access to different organ sites.

© 2005 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics

History
Original Manuscript: November 29, 2004
Revised Manuscript: February 16, 2005
Manuscript Accepted: February 21, 2005
Published: July 10, 2005

Citation
Dizem Arifler, Richard A. Schwarz, Sung K. Chang, and Rebecca Richards-Kortum, "Reflectance spectroscopy for diagnosis of epithelial precancer: model-based analysis of fiber-optic probe designs to resolve spectral information from epithelium and stroma," Appl. Opt. 44, 4291-4305 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-20-4291

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