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结构光用于基于视频的外科导航中的无触摸3D注册.

Tânia Baptista1,2, Miguel Marques3, Carolina Raposo4,3

  • 1Institute of Systems and Robotics, University of Coimbra, Coimbra, Portugal. tania.baptista@isr.uc.pt.

International journal of computer assisted radiology and surgery
|May 30, 2024
PubMed
概括

这项研究引入了一种激光扫描仪,用于在关节镜检查期间在基于视频的外科导航 (VBSN) 中进行非侵入性注册. 与传统的触摸探针相比,这种方法提高了准确性,并扩大了可达到的手术区域.

关键词:
关节镜检查 (arthroscopy) 是一种关节镜检查.深度学习是一种深度学习.结构光的结构光.手术导航手术导航手术导航

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科学领域:

  • 医学技术 医学技术 医学技术
  • 手术导航手术导航手术导航
  • 计算机辅助手术是计算机辅助的手术.

背景情况:

  • 关节镜外科手术带来了可视性和机动性挑战.
  • 基于视频的外科导航 (VBSN) 提供了临床益处,但需要困难的表面数字化.
  • 使用触摸探测器的当前注册方法耗时.

研究的目的:

  • 介绍一款现成的激光扫描仪,用于在关节镜检查中进行非侵入性注册.
  • 为了在关节镜手术过程中增加可达到区域的面积.
  • 为了克服VBSN的表面数字化挑战.

主要方法:

  • 使用标准的关节镜和光投影仪与视觉标记器实时校准.
  • 采用基于深度学习的语义细分技术来识别结构并减轻非刚性表面的异常值.
  • 集成了激光扫描仪,用于非侵入性表面数字化.

主要成果:

  • 带有细分的激光扫描仪在ex-vivo实验中实现了低于2.2毫米的记录误差.
  • 错误在介质区域和幻影实验中低于1毫米.
  • 细分模型有效地减轻了来自非刚性结构的异常值.

结论:

  • 激光扫描仪是VBSN的可行,非侵入性的替代方案,克服了数字化挑战.
  • 这种方法在关节镜术中扩大了可达到的手术区域.
  • 未来的工作将集中在复杂程序的硬件改进上.