Share Email Print
cover

Proceedings Paper

Estimation of the optical sampling volume for skin reflectance measurements
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The absolute quantified measurement of haemoglobin skin blood saturation from collected reflectance spectra of the skin is complicated by the fact that the blood content of tissues can vary both in the spatial distribution and in the amount. These measurements require an understanding of which vascular bed is primarily responsible for the detected signal. Knowing the spatial detector depth sensitivity makes it possible to find the best range of different probe geometries for the measurements of signal from the required zones and group of vessels inside the skin. To facilitate this we have developed a Monte Carlo simulation to estimate the sampling volume offered by small source detector spacing (in the current report 250 micrometer, 400 micrometer and 800 micrometer) in the fiber-optic probes, and confocal microscope probe (the lens parameters are: diameter - 5 mm; focal length - 10 mm; the pinhole diameter is 10 micrometer). The optical properties of the modeled medium were taken to be the optical properties of the Caucasian type of skin tissues in visible range of the spectrum.

Paper Details

Date Published: 22 November 2000
PDF: 9 pages
Proc. SPIE 4160, Photon Migration, Diffuse Spectroscopy, and Optical Coherence Tomography: Imaging and Functional Assessment, (22 November 2000); doi: 10.1117/12.407633
Show Author Affiliations
Igor Victorovich Meglinski, Univ. of Exeter and Saratov State Univ. (United Kingdom)
Stephen John Matcher, Univ. of Exeter (United Kingdom)


Published in SPIE Proceedings Vol. 4160:
Photon Migration, Diffuse Spectroscopy, and Optical Coherence Tomography: Imaging and Functional Assessment
Stefan Andersson-Engels; James G. Fujimoto, Editor(s)

© SPIE. Terms of Use
Back to Top