在急性缺血性中风中使用融合成像和临床深度学习模型预测功能性结果
Yongkai Liu1, Yannan Yu1, Jiahong Ouyang1,2
1Department of Radiology (Y.L., Y.Y., J.O., B.J., S.O., G.Z.).
Stroke
|July 24, 2023
概括
预测急性缺血性中风的结果至关重要. 一个融合成像和临床数据的深度学习模型准确地预测了长期修改的兰金级分数,改善了预后.
科学领域:
- 神经学 神经学
- 医疗成像医学成像
- 人工智能的人工智能
背景情况:
- 准确预测急性缺血性中风患者的长期临床结果对于患者管理和临床决策至关重要.
- 当前的预测方法通常依赖于主观评估和耗时的图像分析.
- 这项研究解决了在中风护理中客观和有效预测结果的需求.
研究的目的:
- 开发和验证一个深度学习模型,用于预测急性缺血性中风患者90天修改的兰金度量 (mRS) 评分.
- 将扩散权重成像数据与急性临床信息融合在一起,以提高预测准确度.
- 减少与传统结果评估方法相关的主观性和用户负担.
主要方法:
- 使用了640名急性缺血性中风患者的队列,可获得MRI和90天mRS数据,随机分为培训,验证和内部测试集.
- 来自洛桑大学医院 (n=280) 的外部验证队列被纳入评估模型概括.
- 性能使用顺序mRS的准确度,±1 mRS类别内的准确度,平均绝对预测误差和不利结果的预测 (mRS>2) 来评估.
主要成果:
- 合并的临床成像深度学习模型在内部和外部队列中显著优于仅临床和仅成像模型.
- 顶部融合模型在内部测试队列中实现了0.92的曲线下面积 (AUC),用于不利的结果预测.
- 在外部队列中,最好的融合模型显示AUC为0.90,并且表现优于其他模型,平均绝对误差为0.90.
结论:
- 集散加权成像和临床变量的深度学习模型为预测90天中风结果提供了强大的方法.
- 这种融合方法提高了预测准确度,同时最大限度地减少了主观性和需要大量后处理的需求.
- 该模型表现出强大的通用性,为急性缺血性中风的临床预后提供了有价值的工具.
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