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arXiv 2005.04974eess.IVcs.CVcs.LG
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深度强化学习在CT器官定位中的应用

Deep Reinforcement Learning for Organ Localization in CT

Technical University of Munich(慕尼黑工业大学);Klinikum rechts der Isar(伊萨尔右岸医院)

Fernando Navarro, Anjany Sekuboyina, Diana Waldmannstetter, Jan C. Peeken, Stephanie E. Combs, Bjoern H. Menze

摘要:

计算机断层扫描中器官的稳健定位是器官特异性图像检索、放射治疗计划和介入图像分析的恒定预处理要求。与目前基于穷举搜索或区域建议的解决方案(需要大量注释数据)相比,我们提出了一种用于CT器官定位的深度强化学习方法。在这项工作中,一个人工智能体通过从它的断言和错误中学习,积极地自学以定位CT中的器官。在强化学习的背景下,我们提出了一套新的行动量身定制的器官定位在CT。我们的方法可以作为一个即插即用模块定位任何感兴趣的器官。我们在包含不同视野和多个器官的CT扫描的公共VISCERAL数据集上评估了所提出的解决方案。我们实现了0.63的总交叉超过联合,绝对中值壁距离为2.25 mm,质心之间的中值距离为3.65 mm。

英文摘要:

Robust localization of organs in computed tomography scans is a constant pre-processing requirement for organ-specific image retrieval, radiotherapy planning, and interventional image analysis. In contrast to current solutions based on exhaustive search or region proposals, which require large amounts of annotated data, we propose a deep reinforcement learning approach for organ localization in CT. In this work, an artificial agent is actively self-taught to localize organs in CT by learning from its asserts and mistakes. Within the context of reinforcement learning, we propose a novel set of actions tailored for organ localization in CT. Our method can use as a plug-and-play module for localizing any organ of interest. We evaluate the proposed solution on the public VISCERAL dataset containing CT scans with varying fields of view and multiple organs. We achieved an overall intersection over union of 0.63, an absolute median wall distance of 2.25 mm, and a median distance between centroids of 3.65 mm.

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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