"Coherence radar" and "Spectral radar"- new tools for dermatological diagnosis

Gerd Haeusler; Michael W. Lindner

doi:10.1117/1.429899

1 January 1998 "Coherence radar" and "Spectral radar"- new tools for dermatological diagnosis

Gerd Haeusler, Michael W. Lindner

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Journal of Biomedical Optics, Vol. 3, Issue 1, (January 1998). https://doi.org/10.1117/1.429899

‘‘Coherence radar,’’ an optical 3-D sensor based on short coherence interferometry, is used to measure skin surface topology. This method is called optical coherence profilometry (OCP) and it may be a useful tool for medical diagnosis in dermatology because different medical conditions show distinct alterations of the skin surface. The measuring uncertainty is less than 2 mm. The measuring time is about 4 s. in vivo 3-D mapping of naked skin was performed without preparation. For clinical application, a fiber optical implementation was introduced. Spectral radar is an optical sensor for the acquisition of skin morphology based on OCT techniques. The scattering amplitude a(z) along one vertical axis from the surface into the bulk can be measured within one exposure. No reference arm scanning is necessary. The theory of the sensor, including the dynamic range, is discussed and in vivo measurements of human skin by a fiber optical implementation of the sensor are demonstrated.

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Gerd Haeusler and Michael W. Lindner ""Coherence radar" and "Spectral radar"- new tools for dermatological diagnosis," Journal of Biomedical Optics 3(1), (1 January 1998). https://doi.org/10.1117/1.429899

Published: 1 January 1998

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KEYWORDS

Skin

Radar

Scattering

In vivo imaging

Sensors

Melanoma

Optical coherence tomography

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