期刊
JOURNAL OF BIOMEDICAL OPTICS
卷 18, 期 6, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JBO.18.6.061231
关键词
nonlinear microscopy; second-harmonic-generation; collagen; burn; thermal denaturation; skin; dermis; dermatology
资金
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [22300154, 23240069, 23650260, 23300165]
- Grants-in-Aid for Scientific Research [23650260, 23300165, 23240069, 25560200, 22300154] Funding Source: KAKEN
Optical assessment of skin burns is possible with second-harmonic-generation (SHG) microscopy due to its high sensitivity to thermal denaturation of collagen molecules. In contrast to previous studies that were performed using excised tissue specimens ex vivo, in vivo observation of dermal collagen fibers in living rat burn models with SHG microscopy is demonstrated. Changes in signal vanishing patterns in the SHG images are confirmed to be dependent on the burn degree. Comparison of the SHG images with Masson's trichrome-stained images indicated that the observed patterns were caused by the coexistence of molten and fibrous structures of dermal collagen fibers. Furthermore, a quantitative parameter for burn assessment based on the depth profile of the mean SHG intensity across the entire SHG image is proposed. These results and discussions imply a potential of SHG microscopy as a minimally invasive, highly quantitative tool for skin burn assessment. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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