Multi-Source CT Imaging for Temporal Resolution and Spatial Consistency
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Solution Overview
Problem
Existing CT imaging technologies face challenges in achieving high temporal resolution and spatial structure consistency, particularly in regions with physiological motion such as the heart, necessitating improved multi-source and multi-energy imaging techniques.
Innovation Solution
An imaging system utilizing multiple imaging sources emitting radiation at different energy levels and scanning angles, combined with data processing techniques to generate reconstruction images and material-specific images, enhancing temporal resolution and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multi-source imaging is used to improve temporal resolution, then temporal resolution is improved, but device complexity increases
Solution Approach 1:
The imaging system is divided into multiple independent imaging sources, each responsible for specific scanning angle ranges. This segmentation allows simultaneous data acquisition from different angles, improving temporal resolution while managing complexity through modular architecture
Solution Approach 2:
Multiple imaging sources share common detectors and data processing systems. Each imaging source can operate independently or in coordination with others, providing multi-functional capability that improves temporal resolution without proportionally increasing overall system complexity
2Speed
If multiple imaging sources scan different angle ranges simultaneously, then temporal resolution is improved, but measurement precision may worsen due to data consistency challenges
Solution Approach 1:
The system varies energy levels of radiation across different imaging sources and scanning angles. By changing energy parameters and utilizing multi-energy detection, the system achieves consistent spatial structure measurement across simultaneously acquired data from multiple sources
Solution Approach 2:
The data processing system incorporates feedback mechanisms that register and align images from multiple imaging sources based on their respective scanning angles and energy levels. This feedback ensures spatial structure consistency while maintaining the temporal resolution benefits of simultaneous multi-source imaging
3Measurement precision
If multi-energy imaging is used to obtain accurate composition information, then measurement precision is improved, but radiation exposure increases
Solution Approach 1:
Multiple imaging sources operate simultaneously to continuously acquire data across different energy levels. This continuous simultaneous acquisition achieves comprehensive composition information in a single imaging event, avoiding the need for repeated scans at different energies that would increase cumulative radiation exposure
Solution Approach 2:
The system adds the energy level dimension to the traditional spatial imaging approach. By incorporating multi-energy detection alongside multi-angle scanning, the system obtains composition information through a fourth dimension (energy) rather than requiring additional temporal scans, thereby reducing total radiation exposure while maintaining measurement precision
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
The system improves temporal resolution and spatial consistency of CT imaging, providing accurate composition information and reducing radiation exposure by synchronizing data collection across different energy levels.
Implementation Method 1
The first imaging source may be configured to emit first radiation rays having a plurality of first energy levels for irradiating a subject
Implementation Method 2
The at least one detector may be configured to collect scan data of the subject by detecting the first radiation rays and the second radiation rays after passing through the subject
Data Source
AI summary
The present disclosure provides imaging systems and methods. The imaging systems may include a first imaging source, a second imaging source, and at least one detector. The first imaging source and the second imaging source may be configured to irradiate a subject simultaneously. The first imaging source may be configured to emit first radiation rays having a plurality of first energy levels for irradiating a subject in a first scanning angle range, the second imaging source may be configured to emit second radiation rays having a plurality of second energy levels for irradiating the subject in a second scanning angle range, and the second scanning angle range may be different from the first scanning angle range. The at least one detector may be configured to collect scan data of the subject by detecting the first radiation rays and the second radiation rays after passing through the subject.