Automatic X-ray Absorption Positioning for Image Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Manual positioning of absorption means in X-ray image acquisition is time-consuming and prone to inaccuracy, leading to reduced image quality and increased radiation exposure.
Innovation Solution
An automatic device and method for positioning X-ray absorption means, which uses a processing unit to determine optimal positions based on image data from a first sequence of X-ray images, allowing for precise positioning of absorption means during a second sequence, thereby optimizing image quality and radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning of absorption means is used, then the device complexity is reduced, but the positioning precision and image quality deteriorate
Solution Approach 1:
The system automatically determines optimal positions for absorption means by processing image data itself, without requiring manual intervention. The processing unit analyzes the image data to identify regions of interest and automatically calculates positioning parameters, enabling the system to serve itself in the positioning task.
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated computational system. The processing unit uses image data analysis and algorithms to determine positions, substituting the mechanical/manual positioning process with an automated information-processing approach that calculates optimal positions based on image content.
2Manufacturing precision
If manual positioning of absorption means is used, then the operation time is reduced, but the positioning accuracy and radiation exposure optimization worsen
Solution Approach 1:
The system performs preliminary analysis of image data to determine optimal positions for absorption means before the actual X-ray acquisition. By pre-calculating the positioning parameters based on the image data and regions of interest, the system prepares the optimal configuration in advance, ensuring both accuracy and efficiency during the actual imaging process.
Solution Approach 2:
The system uses image data as feedback to automatically adjust and determine the optimal positioning of absorption means. The processing unit analyzes the image content, identifies regions requiring protection or emphasis, and uses this information to calculate and set the appropriate positions for absorption elements, creating a closed-loop control system.
3Object-affected harmful factors
If absorption means are positioned to cover more area, then radiation exposure is reduced, but image quality in regions of interest deteriorates
Solution Approach 1:
The system applies different quality requirements to different regions of the image. By analyzing the image data to identify regions of interest, the system determines optimal positions for absorption means that selectively protect specific areas while maintaining image quality in critical regions. This allows localized optimization where absorption is applied only where needed rather than uniformly across the entire field.
Solution Approach 2:
The system dynamically adjusts the positioning parameters of absorption means based on the analyzed image data. By changing the position, orientation, and extent of absorption elements according to the specific characteristics of the image content and identified regions of interest, the system optimizes both radiation protection and image quality for each specific imaging scenario.
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
The solution enables more accurate and efficient positioning of X-ray absorption means, improving image quality and reducing radiation exposure by only exposing selected regions to X-ray radiation, even when the second sequence images lack sufficient information for defining the region of interest.
Implementation Method 1
X-ray image acquisition means (12), X-ray absorption means (14), and a device (16) for automatic absorption means positioning in X-ray image acquisition
Implementation Method 2
absorption means are used, being arranged between the X-ray source and the X-ray detector... to limit the radiation to parts of the anatomy
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The present invention relates to automatic absorption means positioning in X- ray image acquisition. To improve image quality and to optimize the radiation exposure of an object, optimal position for X-ray absorption means is provided. A first sequence (113) of X- ray images is acquired (112). For each of the images, the optimal position (115) for X-ray absorption means is determined (114). A second sequence (117) of X-ray images is associated 10 (116) with corresponding images of the first sequence. The determined optimal position for the absorption means (14) of the associated corresponding images of the first sequence (113) is selected for an acquisition of the second sequence (117). Hence, a situation-specific database with optimized positions for the absorption means is generated on behalf of the first sequence in order to provide the generated position information for the actual acquisition of a 15 second sequence of images.