7 March 2022Effects on dynamic-microscopic OCT signals after manipulation of keratinocyte metabolism in an in-vitro skin model by temperature and with metabolic reagents
1Wellman Ctr. for Photomedicine, Massachusetts General Hospital (United States) 2Univ. zu Lübeck (Germany) 3Medizinisches Laserzentrum Lübeck GmbH (Germany) 4Airway Research Ctr. North (ARCN) (Germany) 5Massachusetts General Hospital (United States) 6Wellman Ctr. for Photomedicine (United States) 7Wellman Ctr. for Photomedicine, Massachusetts General Hospital (Germany)
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Microscopic optical coherence tomography (OCT) provides three-dimensional, high-resolution imaging but lacks (sub-) cellular contrast. Dynamic-microscopic OCT (dmOCT) is an approach exploiting dynamic changes of the scattering behavior in metabolically active cells. However, the underlying cellular processes responsible for those intensity fluctuations and hence the dynamic signals are not finally identified yet. Here, we present the effects of different temperatures and metabolic reagents on dmOCT images of an in-vitro human skin model. Our data indicates a dependency of the dmOCT signals on metabolic activity rather than Brownian motion and suggests dependency on the metabolic state.
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Felix Hilge, Hinnerk Schulz-Hildebrandt, Michael Wang-Evers, Nunciada Salma, Martin Ahrens, Michael Münter, Gereon Hüttmann, Reginald Birngruber, Dieter Manstein, "Effects on dynamic-microscopic OCT signals after manipulation of keratinocyte metabolism in an in-vitro skin model by temperature and with metabolic reagents," Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC1194814 (7 March 2022); https://doi.org/10.1117/12.2612879