Peak-Phase Reconstruction for Motion-Aware Vascular Analysis
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Solution Overview
Problem
Current perfusion scanning methods face challenges in automatically recognizing arterial stage data, leading to lengthy reconstruction times and manual confirmation processes, and are prone to motion-related calculation errors due to user dependence, which affects data accuracy.
Innovation Solution
A system and method for vascular analysis that automatically determines a peak phase based on perfusion scanning data, performs image reconstruction, and conducts vascular analysis, while assessing motion amplitude to ensure accurate results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all phases are reconstructed for vascular analysis, then vascular analysis completeness is improved, but processing time and data volume increase significantly
Solution Approach 1:
The patent extracts only the arterial stage data from the multi-phase perfusion scanning data, identifying and separating this specific phase for vascular analysis. By taking out only the necessary arterial phase information rather than processing all phases, the system achieves accurate vascular analysis while significantly reducing processing time and data volume.
2Measurement precision
If manual confirmation is required for phase selection, then analysis accuracy is improved, but operational complexity and time cost increase
Solution Approach 1:
The system performs automatic recognition and selection of the arterial stage phase through algorithmic processing of the perfusion scanning data. The arterial stage is automatically identified based on characteristic temporal patterns in the contrast agent enhancement, eliminating the need for manual phase selection while maintaining high accuracy through objective computational criteria.
3Measurement precision
If perfusion scanning duration is extended to at least 1 minute, then data quality is improved, but motion artifacts and calculation errors increase
Solution Approach 1:
The system performs motion calibration and evaluation before the main perfusion data acquisition process. By preliminarily assessing and correcting for motion effects, the system prepares the data processing pipeline to handle motion artifacts proactively, thereby maintaining data quality without requiring excessively long scanning durations that would increase motion-related errors.
Data Source
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AI summary
The embodiments provide a method for vascular analysis. The method may include determining a peak phase in a plurality of phases based on perfusion scanning data of the plurality of phases (210); obtaining a reconstruction result of the peak phase by performing, based on the perfusion scanning data of the peak phase, image reconstruction (220); and performing vascular analysis based on the reconstruction result of peak phase (230).