拓观察从连续扫描有限角度光镜的3D设备重建
Martin G Wagner1,2, Ayca Z Kutlu1, Brian Davis2
1Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA.
Medical physics
|February 3, 2024
概括
本研究提出了用于连续扫描有限角度 (CLA) 光镜的新3D重建方法,提高了对最小侵入性手术的导航精度. 该方法增强了复杂解剖学中的导管和导线等设备的实时可视化.
科学领域:
- 医疗成像医学成像
- 干预性放射学 干预性放射学
- 手术导航 手术导航
背景情况:
- 微创手术依赖于实时图像指导,通常使用2D光学.
- 2D成像在复杂的解剖结构中提出了挑战,例如血管和呼吸道.
- 设备的实时3D可视化对于改善导航和程序结果至关重要.
研究的目的:
- 开发和评估用于连续扫描有限角度 (CLA) 光学的非代的3D设备重建算法.
- 整合内光层拓,以防止通过断开的解剖分支进行导航.
- 在微创手术过程中增强实时3D设备可视化.
主要方法:
- 使用了解剖学的静态3D路线图 (RM),转换为图形表示.
- 一种深度学习方法从实时的2D投影中对设备 (导管/导线) 进行了细分,提取了中心线.
- 深度定位是通过与RM相交的设备射线进行的,考虑到拓学,以排除不可能的路径.
主要成果:
- 重建和参考设备中心线之间的平均3D距离很低 (省略了特定值).
- 设备尖端重建的准确性很高 (遗漏了特定值).
- 在高百分比的中,正确的解剖路径被确定 (省略了特定的值).
结论:
- 对于CLA光学,非代的3D重建方法对于曲线器件是可行的.
- 这种方法可以提高在血管内和支气管外干预期间的导航.
- 在复杂和重叠的解剖结构中,可以改进设备导航.
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