机器学习可解释性方法,以描述血液生物标志物的重要性,预测疑似感染患者的预后
Dipak P Upadhyaya1, Yasir Tarabichi2, Katrina Prantzalos1
1Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.
Computers in biology and medicine
|October 11, 2024
概括
当与常规测试相结合时,单细胞分布宽度 (MDW) 并不能显著改善败血症结果预测. 标准的血液学参数和生命体征足以使用机器学习模型准确预测败血症,特别是在资源有限的环境中.
科学领域:
- 紧急医疗 紧急医疗
- 临床病理学 临床病理学
- 生物标志物发现发现
背景情况:
- 败血症是一种危及生命的疾病,需要早期和准确的诊断.
- 单细胞分布宽度 (MDW) 是一种用于毒症预测的新生物标志物.
- 现有的血液学参数和生命体征在急诊室 (ED) 经常使用.
研究的目的:
- 评估单细胞分布宽度 (MDW) 在预测ED患者败血症结果中的有效性.
- 将MDW的预测能力与其他血液学参数和生命体征进行比较.
- 为了确定常规参数是否可以替代MDW在机器学习 (ML) 模型中用于败血症预测.
主要方法:
- 追溯分析了10,229名疑似感染和败血症相关的不良结果的ED患者.
- 开发具有高精度 (0.83-0.90) 的整体ML模型,以预测3天的ICU停留或死亡.
- 利用LIME和SHAP进行解释,以评估个体血液学参数的贡献.
主要成果:
- 当与其他血液学参数和生命体征一起分析时,MDW的预测值会减少.
- 完全血清与差异 (CBD-DIFF) 和生命体征有效地取代ML算法中的MDW用于败血症结果查.
- 使用现有参数可以构建高精度机器学习模型.
结论:
- 当包括常规参数和生命体征时,MDW并不能显著增强败血症预测模型.
- 医院,特别是那些资源有限的医院,可以有效地使用现有的参数和ML模型来预测败血症的结果.
- 常规的血液学参数和生命体征足以准确预测败血症,减少了像MDW这样的专门测试的需要.
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