使用头戴增强现实设备进行反射工具跟踪和空间重建的EVD外科指导
IEEE transactions on visualization and computer graphics
|March 3, 2025
概括
这项研究引入了一种新的增强现实管道,用于外腔室排水 (EVD) 手术,使用更正的飞行时间深度传感来提高空间准确性. 该系统增强了外科手术指导,在模拟手术中展示了竞争性性能.
科学领域:
- 神经外科 神经外科
- 医疗成像医学成像
- 计算机辅助手术 计算机辅助手术
背景情况:
- 增强现实 (AR) 为外腔室排水 (EVD) 手术提供现场视觉指导.
- 在EVD程序中,术前图像和患者解剖学之间的准确空间记录至关重要.
- 现有的追踪方法在准确性,效率和非侵入性之间面临着权衡.
研究的目的:
- 开发和验证一个方便和准确的AR指导管道用于EVD手术.
- 利用飞行时间 (ToF) 深度传感器来改进空间关系估计.
- 解决和纠正用于外科应用的ToF传感器固有的深度错误.
主要方法:
- 使用飞行时间 (ToF) 深度传感器用于反射工具跟踪和密集表面重建.
- 评估和纠正HoloLens 2深度摄像机在各种材料上的深度错误.
- 重建的头部表面准确度为亚毫米,使用更正的深度数据,在幻影和绵羊头上进行验证.
主要成果:
- 使用HoloLens 2深度摄像头,识别了人类皮肤上的显著深度错误.
- 证明了一种拟议的深度校正方法有效地减少了头部幻影上的错误.
- 在头部表面重建中实现了亚毫米准确度.
- 模拟EVD手术案例研究显示了具有竞争力的翻译和指导准确性.
结论:
- 拟议的深度校正方法显著提高了ToF传感器用于手术指导的准确性.
- 开发的AR管道为EVD手术提供了准确和方便的指导.
- 该框架显示了提高外科导航和患者治疗结果的潜力.
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