Skin water content monitoring is important for diagnostics and management of edema, dehydration, and other skin conditions as well as for cosmetic applications. Because optoacoustic (OA) technique has high (optical) contrast and (ultrasound) resolution and significant probing depth, it may be suitable for accurate, noninvasive water content monitoring in the skin. In this work we studied OA response from skin tissue phantoms and human wrist skin in the wavelength range from 1370 nm to 1650 nm using a novel, tunable OPO OA system. We identified optimal wavelengths for OA water content monitoring in different skin layers. The results of our study suggest that the OA technique may become a valuable, quantitative tool for accurate, high‐resolution water content monitoring in the skin and other tissues and may find wide applications in dermatology, cosmetology, and tissue trauma management.

中文翻译：

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光声监测组织体模和人体皮肤中的水分

皮肤含水量监测对于水肿，脱水和其他皮肤状况的诊断和管理以及美容应用非常重要。由于光声（OA）技术具有较高的（光学）对比度和（超声波）分辨率，并且探测深度很大，因此它可能适用于对皮肤中的水进行准确，无创的监测。在这项工作中，我们使用新型可调OPO OA系统研究了在1370 nm至1650 nm波长范围内皮肤组织幻影和人腕皮肤的OA响应。我们确定了监测不同皮肤层中OA水分含量的最佳波长。我们的研究结果表明，OA技术可能会成为一种有价值的定量工具，可用于对皮肤和其他组织进行精确的高分辨率水含量监测，并且可能会在皮肤病学中得到广泛的应用，