X-ray Irradiation Region Adjustment for Stent Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional X-ray imaging apparatuses face challenges in quickly narrowing down the X-ray irradiation region to improve image quality when highlighting a stent, leading to low image quality due to scattered X-rays and difficulty in detecting markers within the image.
Innovation Solution
An X-ray imaging apparatus with an X-ray irradiation region adjustment unit, including a shielding portion that adjusts the X-ray irradiation region based on a set region of interest, allowing for quick narrowing of the irradiation area and improved image quality without prior detection of markers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the irradiation region of X-rays is narrowed down based on the marker of the stent, then the quality of the X-ray image is improved, but the time required to detect the marker and narrow down the region increases
Solution Approach 1:
The control unit preliminarily sets a region of interest based on pre-stored position information of the stent marker before actual X-ray imaging. This allows the irradiation region to be pre-defined and immediately narrowed down without requiring real-time marker detection, thus improving image quality while reducing time loss.
Solution Approach 2:
The system uses pre-stored position information (a copy of spatial data) to determine the irradiation region instead of relying on real-time detection of the physical marker. This copying approach enables immediate region narrowing while maintaining image quality, as the pre-stored position data eliminates the need for time-consuming real-time marker detection.
2Adaptability or versatility
If the irradiation region of X-rays is kept wide to ensure complete coverage, then all areas are captured, but the image quality deteriorates due to scattered X-rays
Solution Approach 1:
The system applies different irradiation strategies to different regions: a wide irradiation region is used when complete coverage is needed, while a narrowed irradiation region is applied to the specific region of interest (where the stent marker is located) to improve image quality. This local differentiation allows the system to maintain both coverage capability and image quality optimization.
3Manufacturing precision
If the irradiation region is narrowed down quickly based on pre-stored position information, then image quality improves rapidly, but the system complexity increases
Solution Approach 1:
The control unit performs multiple functions: it stores position information of the stent marker, determines the region of interest, and controls the irradiation region adjustment unit. By consolidating these functions into a single control unit that operates based on pre-stored data, the system achieves rapid image quality improvement without proportionally increasing overall system complexity.
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 solution enables rapid improvement of X-ray image quality by quickly narrowing the irradiation region and reducing X-ray exposure, facilitating easier detection of markers and enhanced imaging performance.
Implementation Method 1
an X-ray irradiation region adjustment unit including a shielding portion for shielding X-rays
Implementation Method 2
an X-ray irradiation unit configured to emits X-rays to a subject
Implementation Method 3
an X-ray detection unit configured to detect X-rays that have passed through the subject
Data Source
AI summary
An X-ray imaging apparatus includes an X-ray irradiation region adjustment unit for adjusting an X-ray irradiation region and a control unit for controlling the X-ray irradiation region adjustment unit so as to adjust the X-ray irradiation region based on a set region of interest in the case of a region of interest highlighting mode that highlights a predetermined target object within the region of interest set in the image generated by the image processing unit.