Heart Valve Determination via Multi-Plane Pushing Range Analysis
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Solution Overview
Problem
Current methods for determining the opening extent of heart valves during transcatheter aortic valve replacement (TAVR) are experience-based, leading to longer determination times and compromised accuracy.
Innovation Solution
A method involving the determination of multiple target planes in the heart based on anatomical images, identification of initial and pushing reach points, and calculation of pushing ranges to select an appropriate artificial heart valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If experience-based methods are used to determine heart valve opening extent, then the determination process can be performed, but the accuracy is compromised and determination time is extended
Solution Approach 1:
The patent replaces the mechanical/experience-based evaluation method with an automated image processing system. The system uses CT scan images, automatically identifies heart valve structures through algorithmic analysis, and calculates pushing ranges without requiring physician experience, thereby improving accuracy while reducing determination time
Solution Approach 2:
The patent creates a digital copy of the heart valve structure from CT scan images and performs virtual measurements on this copy. By working with the digital representation rather than physical examination, the system achieves consistent, reproducible measurements that are both accurate and time-efficient
2Manufacturing precision
If multiple target planes are analyzed, then the precision of valve selection is improved, but the complexity of the determination process increases
Solution Approach 1:
The patent divides the heart valve analysis into multiple discrete target planes (first target plane, second target plane, etc.) at different heights. Each plane is analyzed independently to determine pushing ranges, and the results are combined to select the appropriate valve size. This segmentation allows complex 3D anatomy to be processed through systematic 2D slices, improving precision while maintaining manageable process complexity
Solution Approach 2:
The patent transitions from 2D single-plane analysis to 3D multi-plane analysis by introducing the vertical dimension (height direction). By analyzing multiple planes at different heights and calculating pushing ranges across these dimensions, the system achieves more precise valve selection that accounts for the three-dimensional geometry of the heart valve
Data Source
AI summary
Disclosed are a method, an apparatus, and an electronic device for determining a heart valve based on multiple planes. The method includes steps of: determining a plurality of target planes in a heart based on an anatomical image; determining at least one first initial pushing point located on an inner contour line of a heart valve leaflet in each target plane; determining at least one first pushing reach point corresponding to the at least one first initial pushing point; determining at least one first pushing range of each target plane based on the at least one first pushing reach point; determining a second pushing range of the heart valve based on the at least one first pushing range; and determining an artificial heart valve that matches the heart valve based on the second pushing range.