Gastroenterology:AI系统用于上消化道出血高危患者的识别

2020-01-06 MedSci MedSci原创

研究认为,AI系统在高危上消化道出血患者识别中的应用效果优于现有方案

近日研究人员通过AI系统,考察了上消化道出血(UGIB)评分系统的临床应用效果。

研究人员分析了从2014年3月至2015年3月在4个国家(美国、苏格兰、英格兰和丹麦;n=1958)的医疗中心收集的UGIB患者数据。使用这些数据来推导和内部验证AI模型,以预测30天内患者不良预后,包括干预(输血或止血干预)或死亡,并将该系统与现有内镜前临床风险评分系统(Glasgow-Blatchford评分[GBS]、入院Rockall评分和AIMS65)进行了比较。

AI模型在内部验证中,对高危患者识别的AUC=0.91,各个现有临床评分系统表现如下:GBS的AUC值为0.88(P=.001),Rockall评分为0.73(P<0.001),AIMS65评分为0.78(P<0.001)。在外部验证队列中,AI系统高危患者识别AUC为0.90,GBS为0.87(P=0.004),Rockall评分为0.66(P<0.001),AIMS65为0.64(P<0.001)。在AI系统和GBS对患者识别的敏感性为100%,AI系统的特异性为26%,而GBS为12%(P<0.001)。

研究认为,AI系统在高危上消化道出血患者识别中的应用效果优于现有方案。

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    2020-10-20 许安
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    2020-01-09 thm112988

    0

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