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arXiv 2510.09499cs.CVcs.AIcs.LG

一种面向临床驱动的交互式分割评估方法

A methodology for clinically driven interactive segmentation evaluation

School of Biomedical Engineering and Imaging Sciences, KCL, UK(生物医学工程与成像科学学院);Siemens Healthineers, Princeton NJ, USA(西门子医疗)

Parhom Esmaeili, Virginia Fernandez, Pedro Borges, Eli Gibson, Sebastien Ourselin, M. Jorge Cardoso

AI总结:

提出一种基于临床的交互式分割评估方法及软件框架,通过异构任务评估发现信息损失、自适应缩放、提示一致性及维度上下文对模型鲁棒性的影响,并揭示非医疗模型在复杂场景下的性能局限。

摘要:

交互式分割是构建鲁棒且可泛化的体积医学图像分割算法的有前景的策略。然而,不一致且不符合临床实际的评估阻碍了公平比较,并错误表征了真实世界的性能。我们提出了一种基于临床的方法来定义评估任务和指标,并构建了一个软件框架以构建标准化的评估流程。我们在异构且复杂的任务上评估了最先进的算法,并观察到:(i) 处理用户交互时最小化信息损失对模型鲁棒性至关重要,(ii) 自适应缩放机制提升鲁棒性并加速收敛,(iii) 若验证时的提示行为/预算与训练不同,性能会下降,(iv) 2D方法在层状图像和粗糙目标上表现良好,但3D上下文有助于处理大型或形状不规则的目标,(v) 非医疗领域模型(如SAM2)在对比度差和形状复杂时性能下降。

英文摘要:

Interactive segmentation is a promising strategy for building robust, generalisable algorithms for volumetric medical image segmentation. However, inconsistent and clinically unrealistic evaluation hinders fair comparison and misrepresents real-world performance. We propose a clinically grounded methodology for defining evaluation tasks and metrics, and built a software framework for constructing standardised evaluation pipelines. We evaluate state-of-the-art algorithms across heterogeneous and complex tasks and observe that (i) minimising information loss when processing user interactions is critical for model robustness, (ii) adaptive-zooming mechanisms boost robustness and speed convergence, (iii) performance drops if validation prompting behaviour/budgets differ from training, (iv) 2D methods perform well with slab-like images and coarse targets, but 3D context helps with large or irregularly shaped targets, (v) performance of non-medical-domain models (e.g. SAM2) degrades with poor contrast and complex shapes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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