Multiactuator Haptic Feedback on the Wrist for Needle Steering Guidance in Brachytherapy
Multiactuator Haptic Feedback on the Wrist for Needle Steering Guidance in Brachytherapy
复制标题
手腕上的多执行器触觉反馈，用于近距离放射治疗中的针转向指导
DOI：
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发表时间：
2016
影响因子：
5.2
通讯作者：
M. Tavakoli
中科院分区：
文献类型：
--
作者：
C. Rossa;J. Fong;N. Usmani;R. Sloboda;M. Tavakoli
近距离放射治疗是一种癌症治疗程序，将长针插入体内靶点，以输送治疗癌细胞的放射性种子。控制针的轨迹是非常有挑战性的，因为它在插入过程中偏离了直线。在这封信中，我们介绍了一种带有触觉反馈的腕带的有用性的初步研究，旨在帮助外科医生将针引导到预期的目的地。腕带嵌入了分布在手腕周围的八个微型致动器。这些致动器被控制以产生不同的触觉刺激，每个触觉刺激都向用户通知必要的针头转向操作。我们描述了腕带的设计和它在两个不同的用户研究中的评估。在第一项研究中，我们评估了用户识别振动模式的准确性。在第二项研究中，我们重点研究了在高认知视觉负荷的环境中，当用户将针插入组织中时，用户如何对这些模式做出反应。报告的识别触觉模式的平均成功率和在插入针时执行正确动作的成功率分别为86%和72%。这些结果表明，该设备可以与针控算法协同工作，帮助外科医生实现高质量的植入物，并发展针控技能。
Brachytherapy is a cancer treatment procedure where long needles are inserted toward an inner body target in order to deliver radioactive seeds that treat the cancer cells. Controlling the trajectory of the needle is very challenging as it deviates from a straight path during insertion. In this letter, we present the pilot study of usefulness of a wristband with haptic feedback designed to help surgeons guide the needle toward a desired destination. The wristband embeds eight miniature actuators distributed around the wrist. The actuators are controlled to generate different haptic stimuli, each of which informs the user about a necessary needle steering manoeuvre. We describe the design of the wristband and its evaluation in two distinct user studies. In the first study, we evaluate how accurately users can identify the vibration patterns. In the second study, we focus on how the user responds to these patterns while performing needle insertion into tissue in an environment with high cognitive visual load. The reported average success rate in identifying the haptic pattern and the success rate in performing the correct action during needle insertion are 86% and 72%, respectively. These results suggest that the device could work in tandem with a needle steering algorithm to help surgeons achieve high quality implants and develop needle steering skills.
影响因子：
45.3
作者：
Pollack, A;Zagars, GK;Rosen, I
通讯作者：
Rosen, I