Catheter Guidance via 2D Fluoroscopy and 3D Mapping Registration
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Solution Overview
Problem
Current electrophysiological catheter applications in the heart face challenges in accurately orienting catheters during procedures due to the limited ability to correlate 2D fluoroscopy images with 3D mapping data, leading to incomplete anatomical mapping and inadequate visualization of catheter positions.
Innovation Solution
The method involves registering and displaying 2D fluoroscopy images with 3D mapping data from the same perspective, using a device with interfaces for inputting and registering image data, and a display module to show both simultaneously, ensuring accurate alignment and visualization of catheter positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If 2D fluoroscopy images and 3D mapping data are displayed separately during catheter application, then the electrophysiologist can access both types of data, but the ability to accurately correlate catheter position with anatomical structures is degraded
Solution Approach 1:
The patent combines 2D fluoroscopy images and 3D mapping data into a single integrated display. The 3D mapping data is registered to correspond with the 2D fluoroscopy image, allowing both data types to be viewed simultaneously in a correlated manner. This merging eliminates the need for the electrophysiologist to switch between separate displays or mentally correlate separate data sets, directly addressing the technical contradiction by preserving anatomical correlation information while maintaining ease of operation.
2Measurement precision
If 3D mapping data is displayed without registration to 2D fluoroscopy images, then the display system is simpler, but the precision of catheter position localization is degraded
Solution Approach 1:
The patent performs preliminary registration of the 3D mapping data to the 2D fluoroscopy image before the actual catheter application procedure. This registration process establishes the spatial correspondence between the two data types in advance, creating a registered reference framework. During the procedure, this pre-established registration enables precise catheter position localization without requiring complex real-time registration operations, thus improving measurement precision while managing device complexity through advance preparation.
3Productivity
If the electrophysiologist focuses exclusively on 3D mapping data during mapping procedure, then the mapping process is more efficient, but the accuracy of anatomical surface mapping is degraded
Solution Approach 1:
The integrated display system provides continuous visual feedback by showing both the 3D mapping data and the corresponding 2D fluoroscopy image simultaneously. This feedback mechanism allows the electrophysiologist to monitor the accuracy of anatomical surface mapping in real-time by comparing the registered 3D representation with the actual 2D anatomical structures visible in the fluoroscopy image. The system maintains mapping procedure efficiency while improving anatomical surface mapping accuracy through this dual-display feedback approach.
Data Source
AI summary
The present invention relates to a method for visually supporting an electrophysiological catheter application in the heart, in which, during the execution of the catheter application, 2D fluoroscopy images (13) of the area of the heart being treated are recorded with an x-ray image recording system (5) and displayed together with 3D mapping data (14) of the area being treated, said 3D mapping data having been prepared simultaneously. A feature of this method is that the 2D fluoroscopy images (13) are registered with the 3D mapping data (14), and said 3D mapping data (14) is displayed, from the same perspective as the 2D fluoroscopy images (13), alongside said 2D fluoroscopy images (13) or image content derived from these (14), or is superimposed over them in the display.