通过ATR-FTIR光谱学和机器学习来识别来自人类血液的突然心脏死亡
Xiangyan Zhang1, Jiao Xiao1, Fengqin Yang1
1Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China.
International journal of legal medicine
|December 4, 2023
概括
这项研究引入了一种快速,非破坏性的方法,用于使用ATR-FTIR光谱和AI来诊断突然心脏死亡 (SCD). 在将光谱数据与患者信息和病理学数据相结合时,SVM模型实现了100%的准确性.
科学领域:
- 法医科学 法医科学 法医科学
- 生物化学 生化学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 突然心脏死亡 (SCD) 的死后诊断在法医实践中提出了重大挑战.
- 目前的方法可能具有侵入性或缺乏敏感性.
- 需要快速,非破坏性的诊断工具.
研究的目的:
- 开发一种快速,灵敏和非破坏性的辅助方法,用于死后SCD诊断.
- 为了评估ATR-FTIR光谱学与机器学习算法的有效性.
主要方法:
- 使用减弱总反射率-里埃变换红外光谱 (ATR-FTIR) 来分析血液样本.
- 使用人工神经网络 (ANN),K-最近邻居 (KNN),随机森林 (RF) 和支持矢量机器 (SVM) 分析了光谱数据.
- 用准确性,精度,回忆,F1得分和混矩阵来评估模型性能.
主要成果:
- 该研究分析了77例病例 (43例SCD,34例非SCD),生成了693个光谱图.
- 仅使用光谱生物标志物,SVM算法实现了最高准确率95.83%.
- 将光谱生物标志物与年龄,性别和心脏组织病理学数据相结合,使SVM模型的准确性提高到100%.
结论:
- 整合人工智能,病理学和血液成分分析为死后SCD诊断提供了一种有效的辅助方法.
- ATR-FTIR光谱学为SCD识别提供了有价值的光谱生物标志物.
- 机器学习,特别是SVM,提高了法医调查中的诊断准确性.
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