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9 March 2016 Skin surface and sub-surface strain and deformation imaging using optical coherence tomography and digital image correlation
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Abstract
Bio-mechanical properties of the human skin deformed by external forces at difference skin/material interfaces attract much attention in medical research. For instance, such properties are important design factors when one designs a healthcare device, i.e., the device might be applied directly at skin/device interfaces. In this paper, we investigated the bio-mechanical properties, i.e., surface strain, morphological changes of the skin layers, etc., of the human finger-pad and forearm skin as a function of applied pressure by utilizing two non-invasive techniques, i.e., optical coherence tomography (OCT) and digital image correlation (DIC). Skin deformation results of the human finger-pad and forearm skin were obtained while pressed against a transparent optical glass plate under the action of 0.5-24 N force and stretching naturally from 90° flexion to 180° full extension respectively. The obtained OCT images showed the deformation results beneath the skin surface, however, DIC images gave overall information of strain at the surface.
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X. Hu, R. Maiti, X. Liu, L. C. Gerhardt, Z. S. Lee, R. Byers, S. E. Franklin, R. Lewis, S. J. Matcher, and M. J. Carré "Skin surface and sub-surface strain and deformation imaging using optical coherence tomography and digital image correlation", Proc. SPIE 9710, Optical Elastography and Tissue Biomechanics III, 971016 (9 March 2016); https://doi.org/10.1117/12.2212361
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