Heart Inner Wall 3D to 2D Equal-Area Projection
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Solution Overview
Problem
Current image processing techniques for heart treatments, such as those using bull's eye maps and Goode projections, struggle to accurately and intuitively represent the inner wall of the heart, particularly in expressing length and area, and fail to provide a clear view of the atria and ventricles' inner surfaces.
Innovation Solution
An image processing device and method that receives three-dimensional heart structure information, using equal-area projections to develop a two-dimensional image of the heart's inner walls, divided into front, rear, left, and right walls, and maps three-dimensional structures with saturation and lightness, allowing for the display of wall thickness, electrocardiogram information, and wall motion states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bull's eye map is used to project three-dimensional cardiac data onto a two-dimensional circle, then the visualization of cardiac function information is achieved, but the length and area are not accurately expressed
Solution Approach 1:
The patent transitions from traditional two-dimensional bull's eye map projection to a three-dimensional virtual model of the heart's inner wall. This allows accurate representation of length, area, and spatial relationships while maintaining intuitive visualization. The 3D model enables measurement of actual distances and areas on the inner wall surface without the distortion inherent in 2D projections.
2Ease of operation
If the entire surface of the heart wall is two-dimensionally developed using Goode projection, then the comprehensive view is achieved, but the image is interrupted while avoiding coronary arteries making intuitive grasping difficult
Solution Approach 1:
The patent segments the heart wall model into distinct regions (atria and ventricles) and presents them as separate but related views. The inner wall can be viewed continuously within each chamber without interruption, while still providing comprehensive coverage of the entire heart wall through coordinated multi-view display.
Solution Approach 2:
By moving to 3D virtual modeling, the patent eliminates the need for interrupted 2D development views. The coronary arteries can be visualized in three-dimensional space alongside the inner wall without requiring the image to be cut or interrupted, maintaining both comprehensiveness and intuitiveness.
3Ease of operation
If traditional projection methods are used to display the inner wall of atria and ventricles, then the overall structure is visible, but the state of the inner wall cannot be intuitively and accurately grasped
Solution Approach 1:
The patent applies different visualization qualities to different regions of the inner wall. High-resolution detailed views of the inner wall surface are provided alongside the overall 3D structure, allowing simultaneous appreciation of global anatomy and local pathological features with accurate measurement capability.
Data Source
AI summary
An image processing device is described herein including an information input unit that receives as an input three-dimensional structure information indicating a three-dimensional structure of a heart; and an image generation unit that develops an inner wall of atria and ventricles of the heart indicated by the three-dimensional structure information into a two-dimensional image based on an equal-area projection and generates a developed image interrupted by dividing the two-dimensional image into a front wall, a rear wall, a left wall, and a right wall. The image generation unit maps the three-dimensional structure in the atria and ventricles of the heart indicated in the three-dimensional structure information on the developed image by a projection of expressing the three-dimensional structure with saturation and lightness.