2D Lesion Mapping for Pulmonary Vein Ablation Continuity
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Solution Overview
Problem
Assessing the continuity and effectiveness of lesions formed in ablation procedures, particularly in pulmonary veins, is challenging due to the difficulty in ascertaining the continuity of lesions along the inner circumference in three-dimensional anatomical structures.
Innovation Solution
A system comprising a processor and interface that transforms a three-dimensional anatomical map into a two-dimensional map, allowing for the display of lesions and enables the detection and display of lesions, and the processor checks the continuity of lesions by ensuring they form a continuous ring along the inner circumference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a three-dimensional anatomical map is used to display lesions, then the anatomical accuracy is improved, but the difficulty of detecting and measuring lesion continuity increases
Solution Approach 1:
The patent transforms the three-dimensional anatomical map into a two-dimensional map that preserves the spatial relationships of the inner circumference. This dimensional transformation allows lesions to be displayed in a flattened view where continuity can be easily assessed as a continuous ring or line, while still maintaining accurate anatomical positioning from the original 3D structure.
2Measurement precision
If a three-dimensional anatomical map is used to display lesions, then the anatomical accuracy is improved, but the time required for verifying the outcome increases
Solution Approach 1:
By presenting the anatomical map in two dimensions with the inner circumference flattened, the patent enables rapid visual assessment of lesion continuity. The continuous ring appearance of complete lesions and the obvious gaps in incomplete lesions allow for quick verification without the time-consuming mental processing required for three-dimensional interpretation.
3Ease of operation
If a two-dimensional map is used to display lesions, then the ease of operation is improved, but the anatomical accuracy deteriorates
Solution Approach 1:
The patent creates a specialized two-dimensional representation that is not a simple projection but a transformed view where the inner circumference is flattened while preserving the relative positions and distances of lesions along the vessel wall. This maintains anatomical accuracy for continuity assessment while providing the operational simplicity of a 2D display.
Data Source
Figure 1
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AI summary
A method includes, receiving: (i) a selected three-dimensional (3D) section that has been ablated in a patient organ in accordance with a specified contour, and (ii) a dataset, which is indicative of a set of lesions formed during ablation of the selected 3D section. The selected 3D section is transformed into a two-dimensional (2D) map, and checking, on the 2D map, whether the set of lesions covers the specified contour.