多对比机器学习改善了杆菌病的诊断性能
María Díaz de León Derby1, Charles B Delahunt2, Ethan Spencer2
1Department of Bioengineering, University of California, Berkeley, Berkeley, California, United States of America.
PLoS neglected tropical diseases
|August 4, 2025
概括
使用暗场 (DF) 和明场 (BF) 成像的机器学习模型显著改善了对Schistosoma haematobium蛋的自动检测. 这种综合方法提高了对杆菌病控制工作的诊断准确性.
科学领域:
- 医学诊断 医学诊断 医学诊断
- 寄生虫学的寄生虫学
- 机器学习在医疗保健中的应用
背景情况:
- 全球有超过2.5亿人患有杆菌病,这对公众健康构成了重大挑战.
- 精确诊断Schistosoma haematobium依赖于显微镜,这需要熟练的人员进行卵子识别.
- 现有的诊断方法在速度和可访问性方面面临限制,特别是在资源有限的环境中.
研究的目的:
- 开发和评估基于机器学习 (ML) 的策略,用于自动检测Schistosoma haematobium卵.
- 通过结合亮场 (BF) 和暗场 (DF) 成像技术来提高诊断性能.
- 评估使用基于手机的显微镜用于自动化杆菌病诊断的可行性.
主要方法:
- 使用基于手机的显微镜 (SchistoScope) 收集了尿样的配对亮场 (BF) 和暗场 (DF) 图像.
- 用BF和DF图像训练单独的ML模型来检测卵子,并单独和组合地比较它们的性能.
- 根据训练有素的显微镜师的注释验证模型性能,使用来自科特迪瓦的两个实地研究的数据.
主要成果:
- 在DF图像和BF/DF图像组合上训练的ML模型显著优于仅在BF图像上训练的模型.
- 在监测和评估中,患者级分类的表现符合世卫组织诊断目标产品 (TPP) 的敏感性 (>75%) 和特异性 (>96.5%).
- 使用来自两个实地研究的图像进行训练进一步提高了模型性能.
结论:
- 结合暗场和明场成像,提高了ML模型的性能,用于自动检测Schistosoma haematobium蛋.
- 这种方法可以提高使用低成本光学的诊断准确性,同时保持可移植性和快速结果,与世卫组织TPP保持一致.
- 暗场成像提供了一种实用的,不需要额外准备的方法,以促进对杆菌病和其他疾病的自动化显微镜诊断.
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