MRI Signal Extraction for Temporal Dimension Analysis
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Solution Overview
Problem
Magnetic resonance imaging (MRI) systems face inefficiencies in multitasking techniques due to increased imaging time and reduced efficiency when acquiring signals for both spatial and temporal information in a single scan, leading to longer acquisition times.
Innovation Solution
A system and method that involves obtaining imaging signals related to a region of interest (ROI), selecting auxiliary signals from these imaging signals associated with temporal dimensions, and using these signals to determine temporal and spatial information, thereby generating target images without the need for additional sampling, reducing imaging time and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If navigation signals are acquired to determine temporal information and image signals are acquired to determine spatial information in a single MRI scan, then multitasking capability is improved, but imaging time increases and imaging efficiency decreases
Solution Approach 1:
The patent extracts temporal information determination from the traditional separate navigation signal acquisition process. By selecting auxiliary signals from the existing imaging signals (specifically from the central region of k-space), the system eliminates the need for separate navigation signal acquisition while still being able to determine temporal information. This extraction approach resolves the contradiction by maintaining multitasking capability without the time penalty of separate signal acquisition.
Solution Approach 2:
The patent makes the imaging signals serve multiple functions: they simultaneously provide spatial information for image reconstruction and temporal information for multitasking analysis. By treating the imaging signals as universal that can fulfill both navigation/temporal and imaging/spatial roles, the system eliminates the need for separate signal types, thereby reducing imaging time while maintaining versatility.
2Adaptability or versatility
If navigation signals are acquired to determine temporal information, then multitasking capability is improved, but imaging efficiency decreases
Solution Approach 1:
The patent extracts the temporal information determination function from the separate navigation signal acquisition process. By selecting auxiliary signals from the central region of k-space within the existing imaging signals, the system eliminates the need for separate navigation signal acquisition. This extraction maintains multitasking capability while improving imaging efficiency by removing the inefficient separate acquisition step.
Solution Approach 2:
The imaging signals serve themselves by simultaneously providing both spatial and temporal information. The auxiliary signals extracted from the imaging signals themselves are used to determine temporal information, eliminating the need for separate navigation signals. This self-service approach improves productivity by making the imaging process self-sufficient.
Data Source
AI summary
A method for magnetic resonance imaging (MRI) may include obtaining imaging signals related to a region of interest (ROI) of a subject. The method may also include selecting a portion of the imaging signals as auxiliary signals associated with at least one temporal dimension of the ROI. The method may also include generating at least one target image associated with the at least one temporal dimension of the ROI based on the imaging signals and the auxiliary signals.