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"冲击形外观":对脏颜色变化的客观评价在出血性冲击死亡

Shogo Shimbashi¹, Motoo Yoshimiya¹, Akiko Tashiro¹

¹Department of Forensic Medicine, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka, Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan.

Legal medicine (Tokyo, Japan)

|August 27, 2024

概括

通过客观地测量"冲击形外观" (SKLA),可以改善出血性休克的法医诊断. 这项研究通过数字分析脏颜色差异,提高创伤病例的诊断准确度.

科学领域:

法医病理学法医病理学
数字成像分析分析数字成像分析.
医学诊断医学诊断医学诊断

背景情况:

创伤造成的出血性休克在法医医学中提出了诊断挑战.
对组织的主观色彩评估缺乏可靠性和可重复性.
在休克死亡中,在皮和脑髓中观察到明显的"冲击状外观" (SKLA).

研究的目的:

开发和验证一个客观的方法来确定SKLA.
在严重出血的情况下,提高法医诊断的准确性.
量化皮和脑髓之间的颜色差异.

主要方法:

使用Image J软件和L*a*b*色彩空间对脏颜色进行数字分析.
检查了122个尸体解剖案例 (83名男性,39名女性;平均年龄为64.8岁).
血液和对照组之间的皮质髓色差异的比较分析.

主要成果:

在群体之间发现了 ΔL* (p < 0.05) 和 Δa* (p < 0.001) 值的显著差异.
出血组的皮层与大脑髓相比,呈现出较少的红色皮层 (Δa*分析).
截止值 Δa* = -1.33 证明了高诊断性能 (AUC = 0.859).

结论:

对皮层和髓层颜色差异的客观数字评估克服了主观评估的局限性.
开发的方法为识别SKLA提供了可靠和可重复的工具.
这种方法在法医色彩评估的客观性方面取得了重大进展.

关键词:

测色仪的颜色测量方法血流性休克是一个令人震惊的现象.L*a*b* 的颜色空间.冲击脏的发生震动脏的外观就像外观一样.

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