Effects of compression on human skin optical properties

Eric Chan, Brian Sorg, Dmitry Protsenko, Michael O'Neil, Massoud Motamedi, Ashley J. Welch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Tissue optical properties are necessary parameters for prescribing light dosimetry in photomedicine. In many diagnostic or therapeutic applications where optical fiber probes are used, pressure is often applied to the tissue to reduce index mismatch and increase light transmittance. In this study, we have measured in vitro optical properties as a function of pressure with a visible-IR spectrophotometer. A spectral range of 400-1800 nm with a spectral resolution of 5 nm was used for all measurements. Skin specimens of two Hispanic donor and three Caucasian donors were obtained from the tissue bank. Each specimen, sandwiched between microscope slides, was compressed by a spring-loaded apparatus. Then diffuse reflectance and transmittance of each sample were measured at no load and at approximately 0.1 and 1 kgf/cm 2. Under compression, tissue thicknesses were reduced up to 78%. Generally, reflectance decreased while the overall transmittance increased under compression. The absorption and reduced scattering coefficients were calculated using the Inverse Adding Doubling Method. Compared with the no-load controls, there was an increase in the absorption and scattering coefficients among most of the compressed specimens.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsB. Chance, R.R. Alfano, A. Katzir
Pages314-324
Number of pages11
Volume2979
DOIs
StatePublished - 1997
Externally publishedYes
EventProceedings of Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model and Human Studies II - San Jose, CA, United States
Duration: Feb 9 1997Feb 12 1997

Other

OtherProceedings of Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model and Human Studies II
CountryUnited States
CitySan Jose, CA
Period2/9/972/12/97

Fingerprint

Skin
Compaction
Optical properties
Tissue
optical properties
transmittance
scattering coefficients
Infrared spectrophotometers
Scattering
reflectance
Spectral resolution
spectrophotometers
chutes
spectral resolution
Dosimetry
dosimeters
Optical fibers
absorptivity
Microscopes
optical fibers

Keywords

  • Compression
  • Integrating sphere measurements
  • Laser-tissue interactions
  • Optical properties
  • Spectrophotometric measurements

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Chan, E., Sorg, B., Protsenko, D., O'Neil, M., Motamedi, M., & Welch, A. J. (1997). Effects of compression on human skin optical properties. In B. Chance, R. R. Alfano, & A. Katzir (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2979, pp. 314-324) https://doi.org/10.1117/12.280260

Effects of compression on human skin optical properties. / Chan, Eric; Sorg, Brian; Protsenko, Dmitry; O'Neil, Michael; Motamedi, Massoud; Welch, Ashley J.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / B. Chance; R.R. Alfano; A. Katzir. Vol. 2979 1997. p. 314-324.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chan, E, Sorg, B, Protsenko, D, O'Neil, M, Motamedi, M & Welch, AJ 1997, Effects of compression on human skin optical properties. in B Chance, RR Alfano & A Katzir (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2979, pp. 314-324, Proceedings of Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model and Human Studies II, San Jose, CA, United States, 2/9/97. https://doi.org/10.1117/12.280260
Chan E, Sorg B, Protsenko D, O'Neil M, Motamedi M, Welch AJ. Effects of compression on human skin optical properties. In Chance B, Alfano RR, Katzir A, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2979. 1997. p. 314-324 https://doi.org/10.1117/12.280260
Chan, Eric ; Sorg, Brian ; Protsenko, Dmitry ; O'Neil, Michael ; Motamedi, Massoud ; Welch, Ashley J. / Effects of compression on human skin optical properties. Proceedings of SPIE - The International Society for Optical Engineering. editor / B. Chance ; R.R. Alfano ; A. Katzir. Vol. 2979 1997. pp. 314-324
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