Modifications of the coherence radar for in-vivo profilometry in dermatology

Peter Andretzky; Michael W. Lindner; G. Bohn; Jochen Neumann; Marc Schmidt; G. Ammon; Gerd Haeusler

doi:10.1117/12.339174

12 February 1999 Modifications of the coherence radar for in-vivo profilometry in dermatology

Peter Andretzky, Michael W. Lindner, G. Bohn, Jochen Neumann, Marc Schmidt, G. Ammon, Gerd Haeusler

Proceedings Volume 3567, Optical and Imaging Techniques for Biomonitoring IV; (1999) https://doi.org/10.1117/12.339174
Event: BiOS Europe '98, 1998, Stockholm, Sweden

Abstract

Important aims in dermatology are the measurement of pathological alterations of human skin and on the other hand the quantification of the influences caused by pharmaceutic and cosmetic products. We present modifications of the well- established coherence radar that allow in vivo measurement of human skin, in spite of involuntary body movements and bloodflow. The measuring field can be varied from 100 X 100 micrometers ² to 5 X 5 mm². The measuring time is 5 to 15 s and the longitudinal measuring uncertainty is about 2 micrometers . A fiber optical implementation allows the separation of the sensor head from the mechanical scan. The mobile and compact sensor head can now be freely positioned and adjusted to each part of the patient's skin. Disturbances caused by unavoidable movement of the patient can be compensated by modified setups of the coherence radar. We show measurements of clinical and cosmetic relevance.

Citation Download Citation

Peter Andretzky, Michael W. Lindner, G. Bohn, Jochen Neumann, Marc Schmidt, G. Ammon, and Gerd Haeusler "Modifications of the coherence radar for in-vivo profilometry in dermatology", Proc. SPIE 3567, Optical and Imaging Techniques for Biomonitoring IV, (12 February 1999); https://doi.org/10.1117/12.339174

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