Ultrasound Vector Flow Imaging with Point Measurement
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Solution Overview
Problem
Existing vector flow imaging techniques face limitations in providing intuitive and accurate visualization and quantification of blood flow, particularly due to complex color-coding maps, non-direct measurement of velocity magnitude, and inability to perform point measurements, which hinders detailed spatiotemporal information extraction.
Innovation Solution
A system and method for concurrent ultrasound vector flow imaging with automatic curve tracking, enabling user-friendly displays to select points for velocity magnitude measurement and intuitive visualization of velocity vector data, using a processor to generate vector field data with axial and lateral components, and display spatiotemporal information, including magnitude and angle, overlaid on ultrasound images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pathlet-based visualization is used to provide intuitive flow trajectory display, then visualization intuitiveness is improved, but direct measurement of velocity magnitude becomes unavailable
Solution Approach 1:
The system segments the visualization and measurement functions by allowing users to select specific points within the blood flow for quantitative measurement while maintaining the overall pathlet-based visual field. This segmentation enables both intuitive visualization and precise measurement to coexist by separating the global visualization context from local measurement points.
Solution Approach 2:
The system introduces an intermediary interface layer between the pathlet visualization and velocity measurement. Users interact with this intermediary layer to select points of interest, and the system mediates between the visual display and the underlying velocity field data to provide accurate measurements at selected locations without compromising the intuitive pathlet display.
2Loss of information
If free-arrow-based visualization with arrowheads for each streamline is used, then flow direction is clearly indicated, but the visualization becomes cluttered and less intuitive
Solution Approach 1:
The system extracts the essential flow direction information from individual arrowheads and represents it through the continuous curved pathlet trajectories instead. By taking out the need for repeated arrowheads along each streamline and replacing them with the directional curvature of pathlets, the system reduces visual clutter while preserving flow direction information.
Solution Approach 2:
The system uses curved pathlet trajectories to represent flow direction instead of straight arrows with arrowheads. The curvature of the pathlets naturally indicates flow direction, eliminating the need for additional arrowhead elements and creating a cleaner, more intuitive visualization.
3Device complexity
If conventional Doppler ultrasound is used for velocity estimation, then the system is simple to implement, but only axial direction velocity can be measured
Solution Approach 1:
The system enhances conventional Doppler ultrasound by integrating vector flow imaging capabilities that provide multi-directional velocity measurements while maintaining compatibility with standard ultrasound systems. The pathlet-based visualization and point measurement features add versatility to the basic Doppler functionality without requiring completely separate hardware systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the visualization and quantification of blood flow by providing more intuitive and accurate displays of vector flow data, allowing for real-time measurement and analysis of blood flow characteristics, improving clinical utility in diagnosing vascular conditions.
Implementation Method 1
an ultrasound imaging apparatus for generating an ultrasound image of a bodily structure
Implementation Method 2
generating an image from ultrasound data representative of a bodily structure
Implementation Method 3
Vector flow imaging (VFI) can be used to visualize and quantify complex blood flow measurements
Data Source
AI summary
A system for visualization and quantification of ultrasound imaging data may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data corresponding to the fluid flow, wherein the vector field data comprises axial and lateral velocity components of the fluid, extract spatiotemporal information from the vector field data at one or more user-selected points within the image, and cause the display unit to concurrently display the spatiotemporal information at the one or more user-selected points with the image including a graphical representation of the vector field data overlaid on the image, wherein the spatiotemporal information includes at least one of a magnitude and an angle of the fluid flow.