Purpose

With the growing availability and variety of imaging modalities, new methods of intraoperative support have become available for all kinds of interventions. The basic principles of image fusion and image guidance have been widely adopted and are commercialized through a number of platforms. Although multimodal systems have been found to be useful for guiding interventional procedures, they all have their limitations. The integration of more advanced guidance techniques into the product functionality is, however, not easy due to the proprietary solutions of the vendors. Therefore, the purpose of this work is to introduce a software system for image fusion, real-time navigation, and working points documentation during transcatheter interventions performed under X-ray (XR) guidance.

Methods

An interactive software system for cross-modal registration and image fusion of XR fluoroscopy with CT or MRI-derived anatomic 3D models is implemented using Qt application framework and VTK visualization pipeline. DICOM data can be imported in retrospective mode. Live XR data input is realized by a video capture card application interface.

Results

The actual software release offers a graphical user interface with basic functionality including data import and handling, calculation of projection geometry and transformations between related coordinate systems, rigid 3D-3D registration, and template matching-based tracking and motion compensation algorithms in 2D and 3D. The link to the actual software release on GitHub including source code and executable is provided to support independent research and development in the field of intervention guidance.

Conclusion

The introduced system provides a common foundation for the rapid prototyping of new approaches in the field of XR fluoroscopic guidance. As a pure software solution, the developed system is potentially vendor-independent and can be easily extended to be used with the XR systems of different manufacturers.

中文翻译：

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3D-XGuide：开源X射线导航制导系统

目的

随着可用性的增加和成像方式的多样性，术中支持的新方法已可用于各种干预措施。图像融合和图像指导的基本原理已被广泛采用，并通过许多平台实现了商业化。尽管已发现多峰系统可用于指导介入程序，但它们都有其局限性。但是，由于供应商的专有解决方案，将更高级的指导技术集成到产品功能中并不容易。因此，这项工作的目的是介绍在X射线（XR）引导下进行导管介入治疗期间进行图像融合，实时导航和工作点记录的软件系统。

方法

使用Qt应用程序框架和VTK可视化管道，实现了用于XR透视与CT或MRI衍生的解剖3D模型的交叉模式配准和图像融合的交互式软件系统。可以以追溯模式导入DICOM数据。实时XR数据输入是通过视频捕获卡应用程序接口实现的。

结果

实际的软件版本提供了具有基本功能的图形用户界面，包括数据导入和处理，投影几何形状的计算以及相关坐标系之间的转换，刚性3D-3D配准以及基于模板匹配的2D和3D跟踪和运动补偿算法。提供了指向GitHub上实际软件发行版的链接，包括源代码和可执行文件，以支持干预指南领域的独立研究与开发。

结论

引入的系统为XR荧光镜引导领域中的新方法的快速原型制作提供了通用基础。作为纯软件解决方案，开发的系统可能独立于供应商，并且可以轻松扩展以与不同制造商的XR系统一起使用。