Skin surface and sub-surface strain and deformation imaging using optical coherence tomography and digital image correlation
Skin surface and sub-surface strain and deformation imaging using optical coherence tomography and digital image correlation
复制标题
使用光学相干断层扫描和数字图像相关进行皮肤表面和次表面应变和变形成像
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Carré
中科院分区：
文献类型：
--
作者：
X. Hu;R. Maiti;X. Liu;L. Gerhardt;Z. S. Lee;R. Byers;S. E. Franklin;R. Lewis;S. Matcher;M. Carré
外力作用下人体皮肤在不同皮肤/材料界面处的生物力学特性一直是医学研究的热点。例如，在设计医疗保健设备时，这些属性是重要的设计因素，例如，该设备可能直接应用于皮肤/设备接口。本文采用光学相干断层扫描（OCT）和数字图像相关（DIC）两种非侵入性技术，研究了人体指垫和前臂皮肤在施加压力下的生物力学特性，即表面应变、皮肤层形态变化等。人体指垫和前臂皮肤在0.5 ~ 24 N的力作用下压在透明光学玻璃板上，分别从90°屈曲自然拉伸至180°全伸，获得皮肤变形结果。获得的OCT图像显示皮肤表面下的变形结果，而DIC图像给出了表面应变的整体信息。
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.