使用深度学习来预测心血管磁共振结果从心声录像视频
Yuki Sahashi1, Milos Vukadinovic2, Grant Duffy1
1Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.
概括
应用于心声回声学的深度学习准确地识别了墙壁运动异常,但无法检测基于心脏磁共振的组织特征,如LGE或T1/T2/ECV映射. 这表明超声波缺乏这些特定组织属性的信号.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 医疗成像医学成像
背景情况:
- 心声成像是主要的心脏成像工具.
- 心脏磁共振 (CMR) 为纤维化,透和炎症提供了先进的组织特征 (LGE,T1/T2映射,ECV).
- 深度学习 (DL) 可以揭示微妙的发现,但其从心声谱中推导CMR组织特征的能力尚未被探索.
研究的目的:
- 评估DL模型在检测CMR衍生组织特征时从心声回声录像视频中的性能.
- 评估模型预测LGE存在和异常T1,T2或ECV值的能力.
- 确定通过DL增强的心声回声能否在组织特征化中取代CMR.
主要方法:
- 在30天内对CMR和心声回声学配对的成年患者进行回顾性研究.
- 一个基于视频的卷积神经网络被训练在心声回声图的视图.
- 该模型预测CMR衍生的LGE,T1,T2,ECV和墙壁运动异常 (WMA) 作为正控.
主要成果:
- 这项研究包括1,453名患者和2,556项配对研究.
- DL模型实现了WMA检测的高精度 (AUC = 0.873).
- 该模型在预测LGE (AUC = 0.699) 和异常T1 (AUC = 0.614),T2 (AUC = 0.553) 或ECV (AUC = 0.564) 中表现不佳.
结论:
- 应用于心声回声学的DL有效地识别了基于CMR的WMA.
- 该模型无法预测CMR特定的组织特征,这表明超声波缺乏这些参数的可检测信号.
- 对于详细的心脏组织表征,CMR仍然至关重要.
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