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SASWISE-UE:通过可解释的可扩展组合进行细分和合成,用于不确定性估计
Weijie Chen1, Alan B McMillan2
1Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53705, USA; Department of Radiology, University of Wisconsin-Madison, WI 53705, USA.
这项研究为可解释的医学深度学习模型提供了一个新的框架. 它使用不确定性图表来显示模型可靠性,改善对细分和合成任务的临床使用.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 深度学习 (Deep Learning) 是一种深度学习.
背景情况:
- 医学中的深度学习模型缺乏可解释性,限制了临床采用.
- 评估医学AI预测的可靠性对于患者安全至关重要.
- 现有的方法通常需要广泛的再培训或单独的不确定性模型.
研究的目的:
- 引入一个高效的子模型组合框架,以提高医学深度学习模型的可解释性.
- 为了使最终用户能够通过不确定性地图来评估模型输出的可靠性.
- 为了证明框架对卷积模型和基于变压器的模型的适用性.
主要方法:
- 开发了一种策略,从一个单一的检查点生成多种模型,创建一个模型家族.
- 实施了一种方法,从一个输入中产生多个输出,将它们合并,并通过输出分歧来估计不确定性.
- 使用U-Net和UNETR架构对CT和MR-CT数据集进行细分和合成任务.
主要成果:
- 在CT身体细分方面获得了0.814的平均子系数.
- 通过修剪,MR-CT合成的平均绝对误差从89.43 HU减少到88.17 HU.
- 在图像腐败和数据低样本化下表现出稳健性,保持不确定性-错误相关性.
结论:
- 拟议的框架保持了模型性能,同时通过不确定性估计显著提高了可解释性.
- 这种方法提高了深度学习在医学成像中的临床适用性.
- 该方法是多功能,适用于各种深度学习架构和成像任务.
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