基于可变形软组织点云注册的半自动机器人穿孔系统
Bo Zhang1,2, Kui Chen3, Yuhang Yao1
1WuXi AMIT Intelligent Medical Technology Col., Ltd., Wuxi, 214000, China.
International journal of computer assisted radiology and surgery
|October 26, 2024
概括
这项研究引入了一种新的机器人穿孔系统,用于肝脏手术实时超声波. 该系统实现了高精度和速度,克服了软组织向传统方法的局限性.
科学领域:
- 机器人在医学中的机器人
- 手术导航系统 手术导航系统
- 医学成像技术 医学成像技术
背景情况:
- 传统的CT和红外导向的手术机器人因呼吸而扎软组织变形,如肝脏.
- 准确评估和补偿肝脏运动和变形仍然是重大技术挑战.
研究的目的:
- 开发和评估使用实时超声波成像的半自动机器人穿孔系统.
- 解决现有系统在穿孔可变形软组织方面的局限性.
主要方法:
- 机器人获得实时超声波数据和空间信息.
- 3D超声波组织点云是使用特征点注册的基于CT的点云构建和注册的.
- 机器人自动定位穿孔指南,并在几秒钟内进行针插入.
主要成果:
- 幻影实验 (n=24) 显示平均操作时间为64.5秒,平均穿孔误差为0.8mm.
- 动物手术 (n=2) 证明了1.76mm和1.81mm的穿孔误差.
- 该系统在幽灵和动物实验中实现了100%的成功率.
结论:
- 开发的机器人系统有效地以高准确性和速度进行肝脏组织穿刺.
- 该系统在微创手术中显示出显著的临床价值.
- 实时超声波指导克服了与机器人手术期间软组织变形相关的挑战.
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