Angiography Data Processing for Clear Vessel Visualization
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Solution Overview
Problem
Angiography data analysis is hindered by variations in contrast agent concentration, leading to unclear and unintelligible visual representations of the circulatory system, as existing methods struggle to smoothly adjust for these variations, resulting in visual artefacts.
Innovation Solution
A method and system that process angiography data by determining regional characteristics indicative of contrast agent concentration within a user-designated region of interest, using techniques such as histogram analysis and neural networks to generate clear and intuitive visualizations, adjusting visualization parameters like opacity and color based on these characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a visualization process adjusts for variations in contrast agent concentration across the entire imaged area, then the clarity of visual representation is improved, but visual artefacts appear due to inability to achieve smooth adjustments
Solution Approach 1:
The patent divides the imaged volume into multiple smaller regions of interest (ROIs) rather than processing the entire volume uniformly. Each ROI is processed independently with its own contrast agent concentration adjustments, preventing visual artefacts while maintaining clarity within each region. The visualization system allows users to navigate through multiple ROIs to examine different areas.
2Area of stationary object
If the entire imaged volume is visualized with uniform adjustment, then coverage is maximized, but contrast agent concentration variations cause loss of intelligibility
Solution Approach 1:
The patent applies different visualization parameters and contrast agent concentration adjustments to different regions of interest based on their local characteristics. Each ROI receives customized processing optimized for its specific contrast agent distribution, ensuring intelligibility is maintained locally while allowing the system to cover the entire imaged volume through navigation between multiple ROIs.
Data Source
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AI summary
Disclosed is a method, a computer readable storage medium and a system for processing angiography data. Angiography data is received at a data processing system. The angiography data is collected by scanning an imaged volume of a patient into whose vessels a contrast agent has been introduced. Data indicating a user-designated region of interest within the imaged volume is received at the data processing system. A determination process is performed at the data processing system. The determination process acts on the angiography data to determine at least one regional characteristic, which is indicative of the concentration of the contrast agent within the region of interest. A visualization process is performed at the data processing system. The visualization process acts on the angiography data and the at least one regional characteristic, to generate image data representative of a view of the region of interest.