从放射学报告中推导和外部验证一种便携式方法来识别肺栓塞患者:READ-PE算法
Matthew A Christensen1, William B Stubblefield2, Grace Wang3
1Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States of America; Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States of America.
Thrombosis research
|August 8, 2024
概括
该READ-PE算法在计算机断层扫描血管造影 (CTA) 报告中准确识别肺栓塞 (PE),改进了以前的方法. 这种经过验证的工具可以简化PE识别,用于紧急部门的研究和监视.
科学领域:
- 放射学和医学成像学 医学成像学
- 计算医学是一种计算医学.
- 医疗信息学 医疗信息学
背景情况:
- 手动审查计算机断层扫描血管造影 (CTA) 报告的肺栓塞 (PE) 是耗时的.
- 现有的PE检测自动化方法通常是复杂的或缺乏外部验证.
- 常规表达式辅助确定PE (READ-PE) 算法是为了便携式,与文本匹配的PE识别而开发的.
研究的目的:
- 开发和验证READ-PE算法用于在CTA报告中自动检测PE.
- 与以前的算法相比,评估READ-PE的准确性.
- 为了在紧急部门设置中实现有效的PE识别.
主要方法:
- 开发了READ-PE算法,使用CTA报告中的正则表达式从衍生队列.
- 在两个学术急救部门的独立队列上验证了算法.
- 将READ-PE的性能 (灵敏度,特异性,PPV,NPV,F1得分) 与之前的三种算法进行比较.
主要成果:
- 在导出队列 (2948个CTA) 中,READ-PE实现了93%的灵敏度,99%的特异性,94%的PPV,99%的NPV和0.93的F1得分.
- 在验证队列 (1206个CTA) 中,READ-PE显示了98%的灵敏度,98%的特异性,85%的PPV,100%的NPV和0.91的F1得分.
- READ-PE的性能优于之前的三种算法,这些算法的F1得分从0.50到0.85.5不等.
结论:
- 外部验证的READ-PE算法在紧急部门的CTA报告中准确地识别PE.
- 这个算法可以集成到电子健康记录中,用于PE研究和监测.
- 建议在新的急救部门实施本地验证和持续维护.
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