论文标题
在CT中进行器官定位的深度增强学习
Deep Reinforcement Learning for Organ Localization in CT
论文作者
论文摘要
在计算机断层扫描中,器官的强大定位是对特定器官图像检索,放射治疗计划和介入图像分析的持续预处理要求。与基于详尽的搜索或需要大量注释数据的当前解决方案相反,我们提出了一种深入的加固学习方法,以在CT中进行器官定位。在这项工作中,人造代理人通过从其断言和错误中学习来积极地自学来定位在CT中的器官。在强化学习的背景下,我们提出了一套针对CT中器官定位的新型动作。我们的方法可以用作插件模块,以定位任何感兴趣的器官。我们在包含具有不同视野和多个器官的CT扫描的公共内脏数据集上评估了建议的解决方案。我们达到了0.63的联合,绝对中值壁距离为2.25 mm,而质心之间的中位距离达到3.65 mm。
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.