Anatomical Template Mapping System

改进的电生理标测技术增强了对心律失常机制的理解和治疗性消融策略的发展。先进的标测系统利用导管的在线可视化、3D几何形状和消融部位的注释。迄今为止，所有市售系统都依赖于专有设备来定位导管位置并根据多个部位记录重建腔室形状。因此，成本过高，限制了广泛的可用性。随着CT-MRI成像和分析的使用，出现了另一种方法。新技术从CT-MRI中提取骨内膜表面的图像用于电生理标测。该表面可以用作腔室几何结构，而不是基于测量心脏内导管尖端的空间坐标的昂贵技术进行重建。申报的解剖模板标测系统（ATMS）将生成来自导管记录的电生理参数标测图，而无需专有设备。医生将虚拟导管位置引导到腔室的3D模型上，从而无需设备来映射导管的空间分布。主要优点是，不需要专门的设备，这种标测方法相当便宜，并且可以与任何传统的电生理标测系统一起使用。此外，它将提供先进标测系统的最重要功能-了解心律失常机制。

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.