Medical Image Display Segmentation for ROI Optimization
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Solution Overview
Problem
Current image display methods for medical imaging, which show both the region of interest (ROI) and the field of view (FOV) in a single window, face challenges in optimizing the size and refreshing rate of the images, leading to suboptimal exploitation of the ROI and unnecessary radiation exposure.
Innovation Solution
Displaying the ROI and FOV in two separate windows with the ROI refreshed at a higher rate than the FOV, allowing independent optimization of image sizes and reducing radiation exposure by using a collimating system to control the refreshing rates and beam collimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the region of interest is displayed in a single window with the field of view, then the display shows both contextual and detailed information, but the region of interest size becomes too small to be easily exploited by the operator
Solution Approach 1:
The display is divided into two separate windows: one showing the field of view with anatomical context and another showing only the region of interest in detail. This segmentation allows each window to be optimized independently - the first window provides contextual information while the second window provides detailed view for easy operator exploitation without compromise
2Area of stationary object
If the displayed image size is increased to show more context, then the field of view is visible, but the region of interest appears too narrow to be easily exploited
Solution Approach 1:
By segmenting the display into two separate windows, the system can show a large field of view in one window without compromising the region of interest visibility in the other window. Each window can display its content at optimal size for its specific purpose
3Ease of operation
If the refreshing rate of the region of interest is increased to update information frequently, then detailed exploitation is enabled, but radiation exposure increases
Solution Approach 1:
The imaging system is segmented to capture and display the field of view at a lower refreshing rate and the region of interest at a higher refreshing rate. This allows frequent updates of the region of interest for detailed exploitation while reducing overall radiation exposure by not continuously imaging the entire field of view at high rate
4Object-affected harmful factors
If collimation is applied to limit radiation exposure, then radiation protection is improved, but the surrounding anatomical context becomes invisible
Solution Approach 1:
The system uses temporal segmentation by switching between two imaging modes: one with collimation for radiation protection and one without collimation for anatomical context visualization. The collimating system can be positioned to define the region of interest for detailed imaging while maintaining the ability to display broader context when needed
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
This approach enables easier operator exploitation of the ROI without overwhelming the display, reduces radiation exposure, and maintains detailed visualization of the ROI within the broader anatomical context, while minimizing unnecessary radiation usage.
Implementation Method 1
collimating the x-ray beam to limit exposure to the anatomical region being treated
Implementation Method 2
an electromagnetic beam collimated with a collimating system is sent on said imaged zone
Data Source
AI summary
An image display method comprising displaying a first image of an imaged zone in a first display window and displaying a second image of only a part of the imaged zone in a second display window (S2) distinct from the first display window, and refreshing a majority of the first image at a first refreshing rate that is lower than a second refreshing rate of the second image.