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Skin reflectance spectrophotometry.

P Bjerring1, P H Andersen

  • 1Department of Dermatology, Marselisborg University Hospital, Aarhus, Denmark.

Photo-Dermatology
|June 1, 1987
PubMed
Summary
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A new skin reflectance spectrophotometer offers objective, reproducible in vivo human skin color measurement for dermatological research. Its simple design and advanced features enable clinical spectral analysis and chromophore assessment.

Area of Science:

  • Biomedical Engineering
  • Dermatology
  • Optical Physics

Background:

  • Accurate, objective measurement of human skin color in vivo is crucial for diagnosing and monitoring dermatological disorders.
  • Existing instruments often lack sufficient reproducibility or clinical applicability for widespread use.

Purpose of the Study:

  • To construct a novel skin reflectance spectrophotometer for objective quantification of human skin color.
  • To evaluate the instrument's performance, focusing on reproducibility and clinical suitability.

Main Methods:

  • Construction of a simple, portable skin reflectance spectrophotometer utilizing optical fibers.
  • In vivo spectral color measurements with a short scan time (20 seconds) and a mobile measuring head.
  • Utilizing computer technology for spectrogram comparison and chromophore analysis.

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Main Results:

  • The developed spectrophotometer provides objective quantification of human skin color in vivo.
  • Achieved improved reproducibility, better than 1.7% compared to a standard white reflecting surface.
  • The apparatus is suitable for clinical spectral color measurements across most anatomical regions due to its design features.

Conclusions:

  • The novel skin reflectance spectrophotometer offers a simple, reproducible, and clinically applicable method for assessing skin color changes in dermatological conditions.
  • The instrument facilitates objective spectral analysis and chromophore assessment, aiding in treatment effect comparisons.