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arXiv 1802.03274cs.CVphysics.med-ph
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用于胰腺不可逆电穿孔的增强现实针消融引导工具

Augmented Reality needle ablation guidance tool for Irreversible Electroporation in the pancreas

University College London(伦敦大学学院);Royal Free Hospital(皇家自由医院)

Timur Kuzhagaliyev, Neil T. Clancy, Mirek Janatka, Kevin Tchaka, Francisco Vasconcelos, Matthew J. Clarkson, Kurinchi Gurusamy, David J. Hawkes, Brian Davidson, Danail Stoyanov

摘要:

不可逆电穿孔(IRE)是一种软组织消融技术,适用于治疗胰腺中无法手术的肿瘤。该过程涉及使用针电极向包含肿块的组织施加高压电场,使癌细胞不可逆地受损并易于凋亡。治疗的有效性在很大程度上取决于针放置的准确性,并且需要操作者的高度技能。在本文中,我们描述了一个增强现实(AR)系统,旨在克服与规划和指导针插入过程的挑战。我们的解决方案基于HoloLens(微软,美国)平台,跟踪耳机,针电极和超声(US)探头在空间中的位置。该系统的概念验证实施使用此跟踪数据在HoloLens上呈现实时全息指南,让用户了解针插入的当前进度和目标针轨迹的指示。操作员的视野通过使用视觉引导和实时US馈送在全息平面上进行增强,从而无需咨询外部监视器。基于这些早期原型,我们的目标是开发一种系统,该系统将降低IRE所需的技能水平,同时提高针插入的整体准确性,从而提高成功治疗的可能性。

英文摘要:

Irreversible electroporation (IRE) is a soft tissue ablation technique suitable for treatment of inoperable tumours in the pancreas. The process involves applying a high voltage electric field to the tissue containing the mass using needle electrodes, leaving cancerous cells irreversibly damaged and vulnerable to apoptosis. Efficacy of the treatment depends heavily on the accuracy of needle placement and requires a high degree of skill from the operator. In this paper, we describe an Augmented Reality (AR) system designed to overcome the challenges associated with planning and guiding the needle insertion process. Our solution, based on the HoloLens (Microsoft, USA) platform, tracks the position of the headset, needle electrodes and ultrasound (US) probe in space. The proof of concept implementation of the system uses this tracking data to render real-time holographic guides on the HoloLens, giving the user insight into the current progress of needle insertion and an indication of the target needle trajectory. The operator's field of view is augmented using visual guides and real-time US feed rendered on a holographic plane, eliminating the need to consult external monitors. Based on these early prototypes, we are aiming to develop a system that will lower the skill level required for IRE while increasing overall accuracy of needle insertion and, hence, the likelihood of successful treatment.

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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