Romero-Méndez Ricardo, Jiménez-Lozano Joel N, Sen Mihir, González F Javier
Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, SLP, Mexico.
Math Med Biol. 2010 Mar;27(1):21-38. doi: 10.1093/imammb/dqp010. Epub 2009 Jul 17.
A serious problem in emergency medicine is the correct evaluation of skin burn depth to make the appropriate choice of treatment. In clinical practice, there is no difficulty in classifying first- and third-degree burns correctly. However, differentiation between the IIa (superficial dermal) and IIb (deep dermal) wounds is problematic even for experienced practitioners. In this work, the use of surface skin temperature for the determination of the depth of second-degree burns is explored. An analytical solution of the 3D Pennes steady-state equation is obtained assuming that the ratio between burn depth and the burn size is small. The inverse problem is posed in a search space consisting of geometrical parameters associated with the burned region. This space is searched to minimize the error between the analytical and experimental skin surface temperatures. The technique is greatly improved by using local one-dimensionality to provide the shape of the burned region. The feasibility of using this technique and thermography to determine skin burn depth is discussed.
急诊医学中的一个严重问题是正确评估皮肤烧伤深度，以便做出适当的治疗选择。在临床实践中，正确区分一度和三度烧伤并不困难。然而，即使对于经验丰富的从业者来说，区分浅二度（真皮浅层）和深二度（真皮深层）伤口也存在问题。在这项工作中，探索了利用皮肤表面温度来确定二度烧伤深度的方法。假设烧伤深度与烧伤面积之比很小，得到了三维彭尼斯稳态方程的解析解。在由与烧伤区域相关的几何参数组成的搜索空间中提出反问题。搜索这个空间以最小化解析皮肤表面温度与实验皮肤表面温度之间的误差。通过利用局部一维性来确定烧伤区域的形状，该技术得到了极大的改进。讨论了使用该技术和热成像来确定皮肤烧伤深度的可行性。
