Body Cavity 3D Map Projection to 2D Unfolded Surface
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Solution Overview
Problem
Current medical imaging technologies face challenges in presenting a comprehensive view of 3D body cavities on 2D screens, limiting physicians' ability to visualize all surfaces simultaneously and potentially leading to slower or erroneous medical procedures.
Innovation Solution
A medical analysis system that projects a 3D map of a body cavity's interior surface onto a 2D plane using spherical coordinates, allowing for partial flattening with elevation values and color or contour representations, enabling intuitive visualization and navigation without manual rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual rotation of 3D image is used, then user can inspect various sides of the 3D image, but the process is time-consuming and may lead to errors
Solution Approach 1:
The patent transforms the 3D cavity surface into a 2D unfolded map, changing the dimensional representation to enable simultaneous viewing of multiple surfaces. This allows physicians to see opposite sides of the cavity at the same time without manual rotation, directly resolving the contradiction between ease of visualization and procedural speed.
Solution Approach 2:
The cavity surface is segmented into multiple 2D regions that can be displayed simultaneously on a 2D screen. By dividing the 3D surface into separable 2D maps, the system enables comprehensive visualization without requiring manual rotation, thus improving both ease of operation and productivity.
2Loss of information
If 3D image is presented on 2D screen, then comprehensive view is possible, but manual rotation is required which reduces efficiency
Solution Approach 1:
The system projects the 3D cavity interior surface onto a 2D plane by unfolding it into a 2D map. This dimensional transformation preserves complete surface information while eliminating the need for manual rotation, thereby reducing time loss while maintaining comprehensive visibility.
Solution Approach 2:
The patent creates a 2D copy or representation of the 3D cavity surface that can be displayed on a 2D screen. This copy maintains all essential geometric and topological information, allowing physicians to inspect the entire cavity surface without time-consuming manual rotation operations.
3Measurement precision
If spherical coordinate system is used for mapping, then accurate 3D representation is achieved, but complex coordinate transformation is required
Solution Approach 1:
The patent introduces an intermediate 2D map representation that bridges the 3D spherical coordinate system and the 2D display. This intermediate representation simplifies the coordinate transformation by providing a direct mapping from spherical coordinates to 2D map coordinates, reducing computational complexity while maintaining measurement precision.
Solution Approach 2:
The system transforms position parameters from spherical coordinates (r, θ, φ) to 2D map coordinates (x, y) through a defined coordinate transformation. This parameter change simplifies the representation and reduces the complexity of subsequent processing and display operations.
Data Source
AI summary
In one embodiment, a medical analysis system, includes a display, and processing circuitry to receive a three-dimensional map of an interior surface of a cavity within a body of a living subject, positions on the interior surface being defined in a spherical coordinate system wherein each position is defined by an angular coordinate pair and an associated radial distance from an origin, project the angular coordinate pair of respective positions from the interior surface to respective locations in a two-dimensional plane according to a coordinate transformation, compute respective elevation values from the plane at the respective locations based on at least the radial distance associated with the respective projected angular coordinate pair, and render to the display an image of a partially flattened surface of the interior surface with the partially flattened surface being elevated from the plane according to the computed respective elevation values at the respective locations.