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Proceedings Paper

Spatially resolved reflectance used to deduce absorption and reduced scattering coefficients
Author(s): Stefan Andree; Carina Reble; Jürgen Helfmann; Ingo Gersonde; Gerd Illing
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Paper Abstract

An experimental set-up is presented for wavelength and spatially resolved reflectance measurements (SRR) via optical fibers and imaging optics. In order to characterize the set-up, we made a set of silicone rubber phantoms with different absorber and scatterer concentrations. The remission profiles gained from the phantoms are the input for a look-up table (LUT) based "inverse Monte-Carlo simulation" to deduce absorption μa and reduced scattering coefficients μs'. As an independent method for determination of μa and μs' we also made measurements with an 'integrating sphere spectrometer' (ISS). Our normalization procedure of the SRR measurements is presented and the validity of this method is discussed.

Paper Details

Date Published: 8 July 2009
PDF: 9 pages
Proc. SPIE 7368, Clinical and Biomedical Spectroscopy, 73680I (8 July 2009); doi: 10.1117/12.831601
Show Author Affiliations
Stefan Andree, Laser- und Medizin-Technologie GmbH, Berlin (Germany)
Institut für Optik und Atomare Physik der Technischen Univ. Berlin (Germany)
Carina Reble, Laser- und Medizin-Technologie GmbH, Berlin (Germany)
Institut für Optik und Atomare Physik der Technischen Univ. Berlin (Germany)
Jürgen Helfmann, Laser- und Medizin-Technologie GmbH, Berlin (Germany)
Ingo Gersonde, Laser- und Medizin-Technologie GmbH, Berlin (Germany)
Gerd Illing, Laser- und Medizin-Technologie GmbH, Berlin (Germany)


Published in SPIE Proceedings Vol. 7368:
Clinical and Biomedical Spectroscopy
Irene Georgakoudi; Jürgen Popp; Katarina Svanberg, Editor(s)

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