arXiv:2603.00201cs.CVcs.AI2026-03

提出自适应不确定性感知模型,让医学影像诊断更可靠。

AdURA-Net: Adaptive Uncertainty and Region-Aware Network

  • 用自适应空洞卷积和多尺度形变对齐捕捉胸部影像解剖细节
  • 双头损失结合掩码交叉熵与证据学习,提升不确定预测能力
  • 适合高风险临床决策,尤其处理标注模糊的多标签数据集

临床决策中常见不确定性问题,常源于放射科报告的模糊性,尤其在包含阳性、阴性和不确定标签的多标签数据集(如CheXpert、MIMIC-CXR)中更为显著。面对证据不足时,模型不应强行给出确定性预测。本文提出AdURA-Net,一种基于几何驱动的自适应不确定性感知框架,用于可靠的胸部疾病分类。核心创新包括:a) 结合Densenet主干网络的自适应空洞卷积与多尺度形变对齐,捕捉医学图像的解剖复杂性;b) 双头损失,融合掩码二值交叉熵与逻辑值及狄利克雷证据学习目标,有效建模模型置信度。该方法能准确识别不确定样本,提升高风险医疗场景下的可靠性。

原文摘要 · Abstract (English)

One of the common issues in clinical decision-making is the presence of uncertainty, which often arises due to ambiguity in radiology reports, which often reflect genuine diagnostic uncertainty or limitations of automated label extraction in various complex cases. Especially the case of multilabel datasets such as CheXpert, MIMIC-CXR, etc., which contain labels such as positive, negative, and uncertain. In clinical decision-making, the uncertain label plays a tricky role as the model should not be forced to provide a confident prediction in the absence of sufficient evidence. The ability of the model to say it does not understand whenever it is not confident is crucial, especially in the cases of clinical decision-making involving high risks. Here, we propose AdURA-Net, a geometry-driven adaptive uncertainty-aware framework for reliable thoracic disease classification. The key highlights of the proposed model are: a) Adaptive dilated convolution and multiscale deformable alignment coupled with the backbone Densenet architecture capturing the anatomical complexities of the medical images, and b) Dual Head Loss, which combines masked binary cross entropy with logit and a Dirichlet evidential learning objective.

医学影像不确定性建模胸部疾病深度学习

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