Dual X-ray Irradiator Angles for 3D Vessel Imaging
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Solution Overview
Problem
Conventional angiographic units face challenges in reconstructing accurate 3D images of blood vessels in real-time fluoroscopy, leading to difficulties in recognizing pathways and directions during treatments, and existing methods for 3D reconstruction using two C-arms result in double radiation exposure and limited angle accessibility.
Innovation Solution
A real-time X-ray fluoroscopic device with a dual X-ray generator system and a mode selector that allows switching between 2D and 3D imaging modes, where the angles of the X-ray irradiators are adjusted based on the selected mode, and the detected X-rays are processed to provide accurate 3D visualization of blood vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two C-arms are used to obtain 2D images orthogonal to each other for 3D reconstruction, then 3D imaging capability is improved, but radiation exposure increases due to double X-ray generators and two detectors
Solution Approach 1:
The patent combines two X-ray irradiators and two detectors into a single integrated system where both X-ray beams pass through the subject and are detected by the same detector array. This merging approach enables 3D reconstruction capability while using only one detector system, thereby reducing radiation exposure compared to using two separate C-arms with independent detectors.
Solution Approach 2:
The single detector system serves multiple functions by detecting X-rays from both irradiators simultaneously. The detector array is configured to receive X-ray signals from multiple angles, enabling the same detector to contribute to both 2D imaging and 3D reconstruction functions that would traditionally require separate detection systems.
2Measurement precision
If two C-arms are used for 3D reconstruction, then 3D imaging capability is improved, but the system complexity increases due to requiring two X-ray generators and two detectors
Solution Approach 1:
The patent merges the detection functions into a single detector system that handles signals from both X-ray irradiators. This consolidation reduces the number of separate components (from two complete C-arms to one integrated system), thereby reducing overall system complexity while maintaining 3D reconstruction capability.
Solution Approach 2:
The single detector array is segmented into multiple detection elements that can distinguish between signals from different irradiators based on their spatial arrangement and angle of incidence. This segmentation allows one detector to perform the work of multiple detectors by dividing the detection function across different elements of the same array.
3Ease of operation
If conventional 2D imaging is used, then the system remains simple, but the operator cannot recognize accurate pathways and directions of blood vessels during treatment
Solution Approach 1:
The patent transitions from 2D imaging to 3D reconstruction by introducing a third dimension of spatial information. By detecting X-rays from multiple angles simultaneously and processing these signals to reconstruct three-dimensional blood vessel structures, the system provides enhanced spatial resolution and accurate pathway visualization while maintaining operational simplicity through automated processing.
Solution Approach 2:
The system processes detected X-ray signals through image processing circuits that reconstruct 3D images in real-time. This feedback loop continuously generates updated 3D visualizations from the detected signals, providing the operator with accurate spatial information about blood vessel pathways and directions without requiring manual intervention or complex manual positioning.
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
Enables accurate visualization of blood vessels in 3D, allowing operators to recognize lesion locations and treatment directions effectively while minimizing radiation exposure and providing convenient mode selection for different use purposes.
Implementation Method 1
an X-ray generator, which includes a first and a second X-ray irradiators, if a first X-ray and a second X-ray irradiated respectively from the first and the second X-ray irradiators pass through a subject
Data Source
AI summary
The present invention comprises: a first X-ray irradiation apparatus and a second X-ray irradiation apparatus for irradiating a subject with X-rays; an X-ray generation unit supporting so that first and second X-rays irradiated onto the subject are detected by a set detector when the subject is irradiated with the first and second X-rays from the first and second X-ray irradiation apparatuses, respectively; and a mode selection unit for allowing selection of any one mode from among a 2D imaging mode and 3D imaging mode, wherein the angles with respect to the subject of the first and second X-ray irradiation apparatuses are determined on the basis of said any one mode selected by means of the mode selection unit from among the 2D imaging mode and 3D imaging mode. According to the present invention, the mode can be easily selected according to need from among the 2D imaging mode and 3D imaging mode.