Visualization of viscoelastic behavior in vivo skin using optical coherence tomography-based straingraphy combined with suction device
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- HARA Yusuke
- Osaka City University, Graduate School of Engineering, Mechanical & Physical Engineering
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- FURUKAWA Daisuke
- Osaka City University, Graduate School of Engineering, Mechanical & Physical Engineering
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- SAEKI Souichi
- Osaka City University, Graduate School of Engineering, Mechanical & Physical Engineering
抄録
<p>Although various apparatuses have been developed to assess the skin mechanical function, the spatial viscoelastic behavior of each skin layer including the epidermis and dermis is yet unclear. To resolve that lack of clarity, we built a handmade system combining a suction device with optical coherence tomography (OCT). OCT can visualize the vertical section of the skin with high spatial resolution and high acquisition speed. In addition, we developed an algorithm for time-dependent strain tomography, named Dynamic Optical Coherence Straingraphy (D-OCSA), which can analyze the changes in strain distributions over time in sequential OCT images. Using the system, successive OCT images of volar forearm skin were obtained after the suction release, followed by calculation of spatial distribution of creep recovery time as an index of viscoelastic behavior. As a result, we revealed that the creep recovery time in the dermis was significantly larger than that of the epidermis. This is the first report to provide evidence that there is a spatial difference in the viscoelastic behavior in the skin. Future application of our method would be beneficial to the diagnosis of skin mechanical function and the validation of cosmetic and medical applications.</p>
収録刊行物
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- Mechanical Engineering Letters
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Mechanical Engineering Letters 4 (0), 17-00656-17-00656, 2018
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680740296960
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- NII論文ID
- 130006673802
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- ISSN
- 21895236
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可