Decomposing Stent Grafts for Deformation Analysis
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Solution Overview
Problem
Current methods for visualizing and quantifying changes in structures, such as aorta stent grafts, lack detailed deformation analysis and visualization, obscuring essential information about deformation sites and complicating the visualization process due to overlapping parts.
Innovation Solution
A method that automatically or semi-automatically decomposes structures into components, allowing for separate visualization and quantification of individual components, calculation of intercomponent parameters, and representation using medial lines or axes, enabling detailed analysis and improved visualization by identifying and removing non-structural parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the entire structure is visualized superimposed for different examination times, then global motion and deformation can be quantified, but the visualization becomes complicated and obscuring due to overlapping parts
Solution Approach 1:
The patent divides the stent graft structure into multiple discrete components (e.g., main body, branches, or annular segments) and visualizes each component separately through decomposition. This segmentation approach maintains quantification accuracy while eliminating the overlapping and obscuring problems of visualizing the entire structure at once, as each component can be displayed individually without interference from other parts.
2Device complexity
If only global motion parameters are calculated, then the analysis remains simple, but detailed deformation information at specific sites is lost
Solution Approach 1:
The patent segments the stent graft into discrete components and calculates motion and deformation parameters for each component individually. This allows the system to maintain relatively simple analysis procedures while simultaneously obtaining detailed deformation information at specific sites, as each segment's local deformation can be measured without being averaged out by the entire structure.
Solution Approach 2:
The patent applies local quality analysis by measuring and reporting deformation parameters specifically for each stent graft component or segment rather than providing only global averages. This enables identification of specific deformation sites and local motion characteristics, preserving critical deformation information while maintaining manageable analysis complexity through automated component-based processing.
3Measurement precision
If the stent graft is decomposed into components, then detailed local deformation analysis becomes possible, but the computational complexity increases
Solution Approach 1:
The patent implements segmentation of the stent graft into discrete components, which enables detailed local deformation measurement. The computational complexity is managed by using automated registration techniques and pre-defined component models, allowing the system to handle multiple components efficiently without requiring manual analysis of each segment.
Data Source
AI summary
The invention relates to a method for visualizing and/or quantifying structures, in particular structures within an object and/or subject, preferably within the human body. The method according to the invention is in particular characterized by the automatic or semiautomatic calculation of a decomposition of the structure into components as well as by at least one of the following steps: (i) the optionally sole visualization of one or more of these components, in particular in case of a superimposed representation of the structure for two or more points in time, and/or (ii) the representation of different components in different colours/shades/patterns, and/or (iii) the calculation of quantitative parameters describing the structure and/or its components, separately for the individual components, and/or (iv) the calculation of parameters measuring the interrelationship between specific components.