建立以测量尸体表面温度和环境温度为基础的死后间隔估计模型,通过红外热学技术测量尸体表面温度
Chunyan Tu1, Hao Zhou2, Runting Dou3
1Department of Forensic Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
Legal medicine (Tokyo, Japan)
|November 21, 2025
概括
红外热学提供了一种更准确和方便的方法,通过监测身体表面温度来估计死后间隔 (PMI). 这种非接触技术克服了传统方法的局限性,改善了法医科学应用.
科学领域:
- 法医科学 法医科学 法医科学
- 生物物理学的生物物理.
- 热理学 热理学 热理学 热理学
背景情况:
- 在法医科学中,估计死后间隔 (PMI) 是至关重要的.
- 传统的方法 (直肠/肝脏温度) 由于手动错误和环境因素,其精度受到限制.
研究的目的:
- 使用红外热学来探索身体表面温度,环境温度和PMI之间的相关性.
- 为了研究体重对身体表面温度下降的速度的影响.
- 使用先进的分析方法开发和验证PMI估计模型.
主要方法:
- 利用红外热学来监测老鼠尸体表面温度和环境温度在各种条件下 (5°C-25°C).
- 对不同物种 (子,SD老鼠,C57小鼠) 的温度变化进行比较,以评估体重影响.
- 采用多变量相关性,多重回归和机器学习用于模型开发和验证.
主要成果:
- 红外热谱为PMI估计提供了一种方便而准确的方法.
- 确定了人体表面温度,环境温度和PMI之间的相关性.
- 经过验证的模型在单盲测试中显示出高精度.
结论:
- 红外热图是提高死后间隔估计的准确性和效率的宝贵工具.
- 开发的模型显示了在法医调查中实际应用的巨大潜力.
- 非接触式温度监测为传统的侵入性方法提供了更优质的替代方案.
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