Multi-Sequence Scanning for Helical CT Overlap Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Helical CT scanning results in overlapping scanning areas during multiple sequence scans, leading to wasted scanning doses and excessive irradiation, as existing methods fail to efficiently manage overlapping regions.
Innovation Solution
A method and device for multi-sequence scanning that identifies mergeable scanning sequences with overlapping areas, merging them into a target scanning area to prevent double dosing and minimize irradiation, by determining sequences with the same scanning parameters and overlapping scanning areas, and performing a single helical scan to cover all merged sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple scanning sequences are performed independently, then comprehensive examination coverage is achieved, but overlapping areas receive double irradiation and scanning dose is wasted
Solution Approach 1:
The patent merges multiple scanning sequences into a unified scanning process by identifying overlapping regions and combining their coverage areas. The system integrates scanning parameters and trajectories from multiple sequences into a single coordinated scan, ensuring that overlapping areas are scanned only once while maintaining comprehensive examination coverage. This eliminates redundant irradiation and optimizes scanning efficiency.
2Ease of operation
If scanning sequences are executed sequentially without coordination, then operational simplicity is maintained, but scanning efficiency decreases due to redundant scans
Solution Approach 1:
The patent performs preliminary analysis of scanning sequences to identify overlapping regions before executing the scan. The system pre-processes scanning parameters, trajectories, and coverage areas to determine mergeable sequences, then coordinates the actual scanning accordingly. This preliminary action enables efficient scanning without compromising operational simplicity, as the complexity is resolved in advance through automated sequence optimization.
3Reliability
If overlapping scanning areas are scanned multiple times, then scan coverage completeness is ensured, but scanning dose and time are wasted
Solution Approach 1:
The patent implements feedback mechanisms that continuously monitor scanning coverage and identify overlapping regions. The system uses this feedback to dynamically adjust scanning parameters and trajectories, merging sequences where overlaps are detected. This feedback-driven approach ensures complete scan coverage while eliminating redundant scanning doses, optimizing both reliability and energy efficiency.
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 reduces waste and minimizes irradiation by ensuring that overlapping areas are not double-scanned, optimizing the scanning process and reducing unnecessary exposure.
Implementation Method 1
an X-ray tube and a detector rotate continuously around a long axis of a subject at a constant speed
Data Source
AI summary
A method and device for multi-sequence scanning are provided. According to an example of the method, when at least two mergeable scanning sequences are obtained from a plurality of scanning sequences, a target scanning area including respective scanning areas of the at least two mergeable scanning sequences may be determined; and then a scanning on the target scanning area may be performed with the at least two mergeable scanning sequences. As at least two scanning sequences satisfying a preset mergeable condition may be extracted from a plurality of scanning sequences, the at least two scanning sequences satisfying the preset mergeable condition may be performed at once.