Diagnostic applications for skin in the microwave range have developed significantly in recent years, due the non-invasiveness of these applications and their ability to assess tissue water content. Despite their capabilities, however, there is still no appropriate clinically applicable microwave tool for the assessment of burn wounds. A common practice is the visual inspection and evaluation of burns by the doctor, which is a challenging task even for experienced medical professionals. An incorrect assessment can have far-reaching consequences, such as unnecessary surgery or surgery that is necessary but omitted. In this paper, two different approaches of millimeter-wave burn wound assessment are presented: millimeter-wave imaging and near-field spectroscopy. For imaging, a MIMO sparse array was used to assess ex vivo burns on porcine skin in the frequency range of 70–80 GHz. With a resonant millimeter-wave near-field probe, reflective spectroscopy at individual sites of an ex vivo burn on porcine skin in the frequency range of 75–110 GHz was performed. The results showed individual advantages and drawbacks for both approaches, with surprising benefits of the spectroscopic method. Nevertheless, both approaches were shown to be suitable for clinical usage in diagnosing burns.

中文翻译：

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用于烧伤评估的毫米波成像和近场光谱

近年来，由于这些应用的非侵入性及其评估组织含水量的能力，微波范围内的皮肤诊断应用得到了显着发展。然而，尽管它们有能力，但仍然没有合适的临床适用的微波工具来评估烧伤伤口。一种常见的做法是由医生对烧伤进行目视检查和评估，即使对于经验丰富的医疗专业人员来说，这也是一项具有挑战性的任务。不正确的评估可能会产生深远的影响，例如不必要的手术或必要但被忽略的手术。本文介绍了两种不同的毫米波烧伤评估方法：毫米波成像和近场光谱。对于成像，使用 MIMO 稀疏阵列来评估离体在 70-80 GHz 的频率范围内烧伤猪皮肤。使用共振毫米波近场探头，在单个位置的反射光谱离体在 75-110 GHz 的频率范围内对猪皮肤进行烧伤。结果显示了两种方法的各自优点和缺点，光谱方法具有令人惊讶的优点。然而，这两种方法都被证明适用于诊断烧伤的临床应用。