Multi-Source X-Ray Imaging System for Volumetric Coverage
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Solution Overview
Problem
Conventional imaging systems are limited to a single source and detector, restricting the volume that can be imaged and requiring larger equipment for larger objects, which hinders efficient data acquisition and image reconstruction.
Innovation Solution
A multiple source imaging system is developed, where multiple sources emit x-rays simultaneously or sequentially to cover a larger volume, allowing for more comprehensive image data collection by positioning these sources angularly and moving them relative to the subject in various patterns, such as circular, helical, or spiral, to enhance imaging capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single source and detector are used, then the device complexity is reduced, but the imaging volume and coverage are limited
Solution Approach 1:
The imaging system is segmented into multiple independent x-ray sources arranged in an annular array, where each source can be independently controlled to image different portions of the volume. This segmentation allows the system to cover a larger imaging volume without requiring a single large complex source-detector assembly.
Solution Approach 2:
The system transitions from a single source-detector pair to a multi-source annular array configuration, adding spatial dimensionality to the imaging system. Multiple sources are distributed around an annulus, enabling volumetric imaging through angularly spaced projections without proportionally increasing the overall system footprint.
2Volume of moving object
If the source and detector size are increased to image larger objects, then the imaging volume is improved, but the device size and complexity increase
Solution Approach 1:
Instead of increasing the linear dimensions of a single source-detector assembly, the system distributes multiple smaller sources around an annular path. This dimensional reconfiguration allows the imaging volume to scale with the annulus radius rather than requiring proportional increases in source-detector size.
Solution Approach 2:
Multiple individual source-detector measurements taken at different angular positions are merged and integrated to reconstruct a complete volumetric image. This combining of multiple smaller measurements achieves the imaging capability of a large system while using smaller individual components.
3Adaptability or versatility
If multiple sources are used to cover larger volume, then the imaging capability is improved, but the data acquisition complexity increases
Solution Approach 1:
The system employs periodic rotation of the annular source array around the volume of interest, acquiring projections at regular angular intervals. This periodic motion simplifies data acquisition by establishing a predictable sampling pattern that can be systematically reconstructed using standard tomographic algorithms.
Solution Approach 2:
The annular array of sources is designed to perform multiple functions: individual sources can image different angular sectors, the array can rotate to acquire volumetric data, and subsets of sources can be activated for different imaging scenarios. This multi-functionality increases adaptability without proportionally increasing operational 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 approach enables the acquisition of detailed image data from larger volumes with improved spatial coverage and flexibility, allowing for more precise imaging and reconstruction of complex subjects without the need for excessively large equipment.
Implementation Method 1
The plurality of sources may be individually powered to emit a signal, such as x-rays, from each of the individual sources
Implementation Method 2
An object may be positioned relative to the imaging system to attenuate the signal between the source and the detector
Data Source
AI summary
Disclosed is a system for imaging a system. The system may be operated to acquire image data of a subject in one or more manners. The image data acquired may be used to various purposes, such as generating an image for display, navigating a procedure, or other appropriate procedures.