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首页> 外文会议>Conference on lasers in surgery: Advanced characterization, therapeutics, and systems >Optical Classification of Bruises
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Optical Classification of Bruises

机译：瘀伤的光学分类

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摘要

Determining the age of injuries is an important aspect of forensic medicine. Currently, visual inspection and colorimetric measurements are the most common techniques used to assess the age of bruises on a victim's body. Bruises are caused by trauma to the skin and vasculature, and the color will depend on the age, depth, and anatomic site of the hemorrhage. Breakdown products of hemoglobin e. g. biliverdin and bilirubin possess various colors, which can be determined spectrometrically. This study presents reflection spectra collected from bruises in otherwise healthy subjects. A total of 73 spectra of 25 bruises were measured on 13 individuals in the 400-850 nm wavelength region. All injuries were caused by sports activities such as judo and soccer. The bruises were classified according to visual appearance, bilirubin content, oxygenation, and age of injury. Only bruises with known age and cause were included in the study. Spectral changes of each hematoma were recorded over several days. Preliminary results show large variation in the spectra, caused by differences in age and depth of the bruises. This data may provide a basis for developing an algorithm to determine the age of injuries in e. g. child abuse cases.
机译：确定伤害的年龄是法医学的一个重要方面。目前，目视检查和比色测量是用于评估受害者身体上瘀伤年龄的最常见技术。瘀伤是由外伤引起的皮肤和血管系统，颜色取决于出血的年龄，深度和解剖学遗址。血红蛋白e的分解产物。 G。 Biliverdin和Bilirubin具有各种颜色，可以分光块确定。本研究提出了在其他健康受试者中从瘀伤收集的反射光谱。在400-850nm波长区域的13个个体上测量总共73个瘀伤的光谱。所有伤害都是由柔道和足球等体育活动引起的。根据视觉外观，胆红素含量，氧合和损伤年龄来分类瘀伤。只有具有已知年龄和原因的瘀伤均包括在研究中。在几天内记录每个血肿的光谱变化。初步结果显示了光谱的大变化，由瘀伤的年龄和深度的差异引起。该数据可以为开发算法提供基础以确定e中损伤的年龄。 G。儿童虐待案例。

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