J Shanghai Jiaotong Univ Sci ›› 2023, Vol. 28 ›› Issue (3): 330-338.doi: 10.1007/s12204-023-2606-y

• Special Issue on Advanced Technologies for Medical Robotics • Previous Articles     Next Articles

Real-Time Slice-to-Volume Registration-Based Autonomous Navigation for Robot-Assisted Thyroid Biopsy

基于实时切片到体积配准的机器人辅助甲状腺活检自主导航

LI Jian1 (李坚),WANG Xingchao1 (王星超),ZHONG Min2 (钟敏),ZHENG Jian2(郑剑),SUN Zhenglong1*(孙正隆)   

  1. (1. School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China; 2. Longgang District People’s Hospital, Shenzhen 518172, Guangdong, China)
  2. (1.香港中文大学 理工学院,广东深圳 518172;2. 龙岗区人民医院,广东深圳 518172)
  • Received:2022-10-30 Revised:2023-02-08 Accepted:2023-05-28 Online:2023-05-28 Published:2023-05-22

Abstract: With advancements in medical imaging and robotic technology, the idea of fully autonomous diagnosis and treatment has become appealing, from ethereal to tangible. Owing to its characteristics of non-invasiveness, non-radiation, and fast imaging speed, ultrasonography has been increasingly used in clinical practice, such as in obstetrics, gynecology, and surgical puncture. In this paper, we propose a real-time image-based visual servo control scheme using a hybrid slice-to-volume registration method. In this manner, the robot can autonomously locate the ultrasound probe to the desired posture according to preoperational planning, even in the presence of disturbances. The experiments are designed and conducted using a thyroid biopsy phantom model. The results show that the proposed scheme can achieve a refresh rate of up to 30 Hz and a tracking accuracy of (0.52±0.65) mm.

Key words: slice-to-volume registration, autonomous navigation, thyroid biopsy

摘要: 随着医学成像和机器人技术的进步,完全自动诊断治疗的想法变得越来越有吸引力。超声检查具有无创、无辐射、成像速度快等特点,越来越多地被应用于临床,如妇产科、外科穿刺等。在本文中,我们提出了一种使用混合切片到体积配准方法的基于实时图像的视觉伺服控制方案。以这种方式,即使在存在干扰的情况下,机器人也可以根据术前计划自主将超声探头定位到所需的姿态。我们使用了甲状腺活检模体模型来设计和进行实验。结果表明,本文所提出的方案可以实现高达30 Hz的刷新率和(0.52±0.65)mm的跟踪精度。

关键词: 切片到体积配准,自主导航,甲状腺活检

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