CPR Image Longitudinal Section Orientation Visualization
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Solution Overview
Problem
Existing methods for visualizing tubular tissues, such as blood vessels, using CPR images struggle to clearly depict the longitudinal section's orientation and position, making it difficult for users to understand the positional relationship between the CPR image and the tubular tissue, especially for meandering structures.
Innovation Solution
A diagnosis assisting apparatus and method that extracts tubular tissue regions from volume data, generates CPR images with a core line and longitudinal sections, and creates pseudo three-dimensional images with marks representing the longitudinal sections, allowing for easier visualization of the tubular tissue's orientation and position by displaying these images alongside the CPR images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If only CPR image or pair of CPR image and cross-sectional image is displayed for observation of tubular tissue, then the display is simple and easy to operate, but it is difficult for users to determine the direction of longitudinal section at each position of tubular tissue
Solution Approach 1:
The patent displays the longitudinal section direction as a three-dimensional arrow overlay on the CPR image, adding a spatial dimension to the otherwise two-dimensional display. This allows users to visually perceive the orientation and direction of the longitudinal section at each position without complicating the basic CPR image display interface
Solution Approach 2:
The patent uses color-coded arrows (typically green or blue) to indicate the longitudinal section direction, making the orientation information visually distinct and easy to interpret. The color differentiation helps users quickly grasp the directional information without requiring complex interactions or additional display modes
2Area of stationary object
If CPR image is used to display longitudinal section of meandering tubular tissue, then the entire longitudinal section can be displayed in one screen, but the longitudinal section becomes curved or twisted shape making it difficult to understand positional relationship
Solution Approach 1:
The patent overlays three-dimensional directional arrows on the two-dimensional CPR image to provide depth and orientation information. This allows the curved or twisted longitudinal section to be displayed in its natural meandering form while simultaneously providing visual cues about the sectioning direction at each point along the tubular tissue
Solution Approach 2:
The directional arrow acts as an intermediary element that bridges the gap between the curved longitudinal section display and the user's understanding of the tubular tissue's three-dimensional structure. The arrow provides a reference frame that helps users mentally reconstruct the spatial relationships without requiring them to interpret complex curved geometries directly
Data Source
AI summary
Providing a diagnosis assisting apparatus that allows, in a diagnostic screen of a tubular tissue, easy understanding of the positional relationship between a curved cutting surface represented by a CPR image and the tubular tissue. Extracting a tubular tissue region representing a tubular tissue from volume data obtained by imaging and setting a core line to the tubular tissue, generating a CPR image which includes the core line and a longitudinal section of the tubular tissue region, obtaining the longitudinal section from the CPR image generation means, generating a pseudo three-dimensional image that includes a mark representing the obtained longitudinal section, as well as the tubular tissue in the extracted tubular tissue region based on the volume data, and displaying the pseudo three-dimensional image.