Pulsed X-ray Apparatus Motion Artifact Reduction
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Solution Overview
Problem
X-ray imaging technologies face challenges in acquiring high-quality images while minimizing radiation exposure, particularly in fluoroscopy, where prolonged imaging times increase patient radiation dosage and motion artifacts degrade image quality.
Innovation Solution
An X-ray apparatus and method that adjusts the pulse rate and amplitude of a pulse-type X-ray signal based on object movement and anatomical structures, generating interpolated image frames to maintain image quality and reduce radiation exposure, using a controller to manage the X-ray generator and adjust image frames accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fluoroscopy imaging is performed to acquire continuous X-ray images for monitoring medical operations, then real-time imaging capability is improved, but the amount of radiation exposure to the patient increases
Solution Approach 1:
The patent applies periodic action by using pulsed X-ray imaging instead of continuous imaging. The system acquires a plurality of image frames at specific time intervals by radiating pulse-type X-rays, thereby providing real-time monitoring capability while significantly reducing the total radiation dose to the patient compared to continuous fluoroscopy imaging.
2Object-affected harmful factors
If the dose of radiated X-ray is reduced to minimize radiation exposure, then radiation safety is improved, but image quality deteriorates due to lower signal amplitude
Solution Approach 1:
The patent applies preliminary action by acquiring a plurality of image frames at reduced X-ray doses and then performing preliminary processing including motion artifact correction and image fusion. This allows the system to reconstruct high-quality images from multiple low-dose frames, thereby maintaining image quality while reducing radiation exposure.
Solution Approach 2:
The patent applies merging by fusing multiple image frames acquired at different time points and/or different X-ray dose levels. The image fusion process combines information from multiple frames to produce a final image with quality comparable to or better than single high-dose images, thereby enabling dose reduction without quality loss.
3Manufacturing precision
If high X-ray dose is radiated to prevent motion artifacts and increase image accuracy, then image quality is improved, but radiation exposure increases
Solution Approach 1:
The patent applies feedback by detecting object motion between image frames and using this motion information to correct motion artifacts in subsequent frames. The system analyzes the plurality of acquired image frames to determine motion patterns and applies corrective transformations, thereby maintaining image accuracy without requiring high X-ray doses.
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 the acquisition of high-quality X-ray images with reduced radiation exposure and minimized motion artifacts, improving diagnostic accuracy while optimizing radiation usage during fluoroscopy and other X-ray imaging procedures.
Implementation Method 1
An X-ray apparatus includes a controller controlling generation of an X-ray and adjusting at least one of a plurality of image frames generated based on the X-ray passed through an object
Data Source
AI summary
An X-ray apparatus includes a controller controlling generation of an X-ray and adjusting at least one of a plurality of image frames generated based on the X-ray passed through an object, and an X-ray generator generating the X-ray. The X-ray corresponds to a pulse signal including a plurality of pulses, in which at least one of a pulse rate or a pulse amplitude is variable.