X-ray Imaging Apparatus Cardiac Phase Grouping
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Solution Overview
Problem
Current X-ray imaging technologies face challenges in acquiring a clear 3D volume of an object from reconstructed X-ray images, particularly in medical applications where detailed internal structures are required, such as the chest region, due to blurring caused by varying cardiac phases during image acquisition.
Innovation Solution
An X-ray imaging apparatus and control method that involves radiating X-rays from different positions, detecting and converting X-rays into electrical signals, grouping X-ray images based on cardiac phases, and performing image reconstruction to enhance the clarity of 3D volume data by synchronizing image acquisition with cardiac cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If X-ray images are acquired continuously during cardiac cycles, then image acquisition completeness is improved, but image clarity deteriorates due to blurring from varying cardiac phases
Solution Approach 1:
The patent segments the acquired X-ray images into multiple groups based on cardiac phase synchronization. Each group contains images from the same cardiac phase, allowing separate reconstruction that eliminates blurring while preserving the completeness of the acquired image set.
Solution Approach 2:
The patent performs preliminary grouping of X-ray images by cardiac phase before the image reconstruction process. This preliminary organization ensures that images from the same cardiac phase are processed together, preventing blurring artifacts before reconstruction occurs.
2Productivity
If X-ray images from different cardiac phases are combined for reconstruction, then image acquisition efficiency is improved, but diagnostic accuracy deteriorates due to motion blurring
Solution Approach 1:
The patent divides the complete set of X-ray images into multiple cardiac phase groups, then performs separate reconstruction for each group. This segmentation maintains high acquisition efficiency by using all available images while improving diagnostic accuracy by eliminating cross-phase blurring through phase-specific reconstruction.
Solution Approach 2:
The patent applies different reconstruction processing to different cardiac phase groups. Each group undergoes reconstruction optimized for its specific cardiac phase characteristics, providing locally optimized image quality that enhances overall diagnostic accuracy while maintaining efficient use of all acquired images.
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 improves the quality of 3D volume data by reducing blurring and allowing for more accurate visualization of internal structures, facilitating better diagnostic capabilities and reducing errors in medical imaging.
Implementation Method 1
radiating X-rays to the object from different positions
Implementation Method 2
detecting X-rays transmitted through the object and converting the detected X-rays into electrical signals
Data Source
AI summary
Disclosed herein are an X-ray imaging apparatus and a control method thereof in which a clear 3D volume of an object may be acquired when the 3D volume of the object is reconstructed from X-ray images acquired by radiating X-rays to the object. The X-ray imaging apparatus includes an image processing unit configured to acquire a plurality of X-ray images of an object from converted electrical signals, group the plurality of X-ray images into groups of X-ray images acquired from the same cardiac phase, and perform image reconstruction of each of the groups acquired as a result of the grouping.