Anatomical Template Mapping System

改进的电生理测图技术加强了对心律失常机制的理解和治疗性消融策略的发展。先进的绘图系统利用导管的在线可视化、三维几何图形和消融部位的注释。迄今为止，所有商业上可用的系统都依赖于专有设备来定位导管位置并从多个站点记录中重建腔室形状。因此，成本过高，限制了广泛使用。另一种方法是使用CT-MRI成像和分析。新技术从CT-MRI中提取心内膜表面图像用于电生理制图。这个表面可以作为腔室的几何形状，而不是基于昂贵的测量心脏导管尖端空间坐标的技术来重建。拟议的解剖模板测绘系统（ATMS）将生成来自导管记录的电生理参数图，而无需专有设备。医生将指导虚拟导管位置到腔室的3D模型上，避免需要设备来绘制导管的空间分布。该方法的主要优点是，不需要专门的设备，其成本大大降低，可以与任何传统的电生理测绘系统一起使用。此外，它将提供先进的测绘系统的最重要的特征-心律失常机制的理解。

Improved electrophysiological mapping techniques have enhanced understanding of arrhythmia mechanisms and the development of curative ablation strategies. Advanced mapping systems utilize online visualization of catheters, 3D geometry, and annotation of ablation sites. To date, all commercially available systems rely on proprietary equipment to locate catheter positions and reconstruct chamber shape from multiple site recordings. Thus, cost is prohibitive, limiting widespread availability. An alternative approach has emerged with the use of CT-MRI imaging and analysis. Novel techniques extract images of the endocardial surface from CT-MRI for use in electrophysiological mapping. This surface can be used as the chamber geometry instead of reconstruction based on expensive technology measuring spatial coordinates of the catheter tip inside heart. The proposed Anatomical Template Mapping System (ATMS) will generate maps of electrophysiological parameters derived from catheter recordings without the need for proprietary equipment. The physician will direct the virtual catheter position onto the 3D model of the chamber, obviating the need for equipment to map the spatial distribution of the catheters. The major advantage is that, without the need for specialized equipment, this method of mapping is substantially cheaper and can be used with any conventional electrophysiological mapping systems. Furthermore, it will provide the most important feature of the advanced mapping systems - an understanding of the arrhythmia mechanism.