Optimizing penetration depth, contrast, and resolution in 3D dermatologic OCT

Alex Aneesh; Boris Považay; Bernd Hofer; Edward Z. Zhang; Catherine Kendall; Jan Laufer; Sergei Popov; Carl Glittenberg; Susanne Binder; Nicholas Stone; Paul C Beard; Wolfgang Drexler

doi:10.1117/12.843243

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19 February 2010 Optimizing penetration depth, contrast, and resolution in 3D dermatologic OCT

Alex Aneesh, Boris Považay, Bernd Hofer, Edward Z. Zhang, Catherine Kendall, Jan Laufer, Sergei Popov, Carl Glittenberg, Susanne Binder, Nicholas Stone, Paul C Beard, Wolfgang Drexler

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Proceedings Volume 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV; 75540V (2010) https://doi.org/10.1117/12.843243
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

High speed, three-dimensional optical coherence tomography (3D OCT) at 800nm, 1060nm and 1300nm with approximately 4μm, 7μm and 6μm axial and less than 15μm transverse resolution is demonstrated to investigate the optimum wavelength region for in vivo human skin imaging in terms of contrast, dynamic range and penetration depth. 3D OCT at 1300nm provides deeper penetration, while images obtained at 800nm were better in terms of contrast and speckle noise. 1060nm region was a compromise between 800nm and 1300nm in terms of penetration depth and image contrast. Optimizing sensitivity, penetration and contrast enabled unprecedented visualization of micro-structural morphology underneath the glabrous skin, hairy skin and in scar tissue. Higher contrast obtained at 800 nm appears to be critical in the in vitro tumor study. A multimodal approach combining OCT and PA helped to obtain morphological as well as vascular information from deeper regions of skin.

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Alex Aneesh, Boris Považay, Bernd Hofer, Edward Z. Zhang, Catherine Kendall, Jan Laufer, Sergei Popov, Carl Glittenberg, Susanne Binder, Nicholas Stone, Paul C Beard, and Wolfgang Drexler "Optimizing penetration depth, contrast, and resolution in 3D dermatologic OCT", Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75540V (19 February 2010); https://doi.org/10.1117/12.843243

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