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Reflective THz and MR imaging of burn wounds: a potential clinical validation of THz contrast mechanisms

机译:烧伤创面的反射THz和MR成像:THz对比机制的潜在临床验证

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Terahertz (THz) imaging is an expanding area of research in the field of medical imaging due to its high sensitivity tochanges in tissue water content. Previously reported in vivo rat studies demonstrate that spatially resolved hydrationmapping with THz illumination can be used to rapidly and accurately detect fluid shifts following induction of burnsand provide highly resolved spatial and temporal characterization of edematous tissue. THz imagery of partial andfull thickness burn wounds acquired by our group correlate well with burn severity and suggest that hydrationgradients are responsible for the observed contrast. This research aims to confirm the dominant contrast mechanismof THz burn imaging using a clinically accepted diagnostic method that relies on tissue water content for contrastgeneration to support the translation of this technology to clinical application. The hydration contrast sensingcapabilities of magnetic resonance imaging (MRI), specifically T2 relaxation times and proton density values N(H),are well established and provide measures of mobile water content, lending MRI as a suitable method to validatehydration states of skin burns. This paper presents correlational studies performed with MR imaging of ex vivoporcine skin that confirm tissue hydration as the principal sensing mechanism in THz burn imaging. Insights fromthis preliminary research will be used to lay the groundwork for future, parallel MRI and THz imaging of in vivo ratmodels to further substantiate the clinical efficacy of reflective THz imaging in burn wound care.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译:太赫兹(THz)成像由于对组织含水量的变化高度敏感,因此在医学成像领域是一个不断扩展的研究领域。先前报道的体内大鼠研究表明,具有THz照明的空间分辨水化映射可用于快速,准确地检测烧伤后的液体移位,并提供高度分辨的水肿组织的时空特征。我们小组获得的部分和全层烧伤创面的THz图像与烧伤严重程度密切相关,表明水合梯度是观察到的对比度的原因。这项研究旨在使用临床公认的诊断方法来确认THz烧伤成像的主要对比机制,该诊断方法依赖于组织含水量进行对比生成,以支持将该技术转化为临床应用。磁共振成像(MRI)的水合对比感测能力(特别是T2弛豫时间和质子密度值N(H))已得到充分确立,并提供了可移动水含量的量度,这使MRI作为验证皮肤灼伤水合状态的合适方法。本文介绍了用离体猪皮肤的MR成像进行的相关研究,证实了组织水合作用是THz烧伤成像中的主要传感机制。这项初步研究的见解将用于为将来的体内大鼠模型并行MRI和THz成像奠定基础,以进一步证实反射THz成像在烧伤创面护理中的临床功效。©(2012)COPYRIGHT光电仪器工程师协会(SPIE)。摘要的下载仅允许个人使用。

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