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首页> 外文会议>Visualization, Image-Guided Procedures pt.2; Progress in Biomedical Optics and Imaging; vol.8 no.28; Proceedings of SPIE-The International Society for Optical Engineering; vol.6509 pt.2 >Precise Determination of Regions of Interest for Hepatic RFA Planning
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Precise Determination of Regions of Interest for Hepatic RFA Planning

机译：精确确定肝RFA规划的感兴趣区域

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Percutaneous radiofrequency ablation is one of the most promising alternatives to open surgery for the treatment of liver cancer. This operation is a minimally invasive procedure that consists in inserting a needle in targeted tissues that are destroyed by heat. The success of such an operation mainly depends on the accuracy of the needle insertion, making it possible to destroy the whole tumor, while avoiding damages on other organs and minimizing risks of a local recurrence. We are developing a software that applies planning rules on patient-specific 3D reconstructions, in order to suggest relevant options for the choice of a path to the tumor, and that displays various information allowing to adjust the final choice. In this context we propose a method to compute automatically, quickly, and accurately, the possible insertion areas on the skin. Within these areas, an insertion of the probe targeting the tumor respects the numerous strong (boolean) constraints required for a radiofrequency ablation. Besides, these insertion zones define the research domain of the optimization process, taking into account soft constraints to refine the solutions. They are also displayed on the skin of the virtual patient to inform the physician about the different possibilities specific to each case, allowing him at the end of the automatic process, to modify interactively the proposed strategy, with a real-time update of the related information. We discuss in this paper about the importance of a precise delineation of these areas.
机译：经皮射频消融是开放手术治疗肝癌的最有希望的替代方法之一。此操作是一种微创手术，其中包括将针插入受热破坏的目标组织中。这种手术的成功主要取决于针头插入的准确性，从而有可能破坏整个肿瘤，同时避免对其他器官的损害并使局部复发的风险最小化。我们正在开发一种软​​件，该软件将规划规则应用于特定于患者的3D重建，以便为选择通往肿瘤的路径提供相关选择，并显示各种信息以调整最终选择。在这种情况下，我们提出了一种自动，快速和准确地计算皮肤上可能的插入区域的方法。在这些区域内，插入靶向肿瘤的探针符合射频消融所需的众多强（布尔）约束。此外，这些插入区域定义了优化过程的研究领域，同时考虑了软约束以优化解决方案。它们还显示在虚拟患者的皮肤上，以告知医生每种情况的不同可能性，从而使他在自动过程结束时可以交互地修改建议的策略，并实时更新相关策略。信息。我们在本文中讨论了精确划定这些区域的重要性。

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