MRI Sequence Generation Using Alternating Time Segments
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Solution Overview
Problem
The complexity of MRI sequence development due to numerous dependencies makes it difficult for developers to implement sequences effectively, leading to long adaptation times and inefficiencies.
Innovation Solution
The method involves defining two types of time segments that alternate in the MRI sequence, allowing for simpler assignment of functional conditions and implementation, with numerical values for gradient strength and RF transmission signals stored in a readable format, enabling a compact and efficient sequence description.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If developers are given great freedom in configuring MRI sequences with detailed control over RF transmission signals and gradient strengths, then the versatility and functionality of sequences can be improved, but the complexity of sequence development and the time required for adaptation increase significantly
Solution Approach 1:
The MRI sequence is divided into discrete time segments, each representing a specific functional unit with predefined characteristics. Developers can configure sequences by selecting and arranging these standardized time segments rather than programming every parameter from scratch, thereby maintaining versatility while reducing development complexity.
Solution Approach 2:
The system transforms the complex configuration process into parameter-based control where time segments have predefined characteristics that can be adjusted through simple parameter modification. This allows developers to maintain sequence functionality while working with standardized, manageable parameters rather than detailed signal control.
2Adaptability or versatility
If developers configure MRI sequences with detailed control over every parameter, then the functionality and adaptability of sequences are improved, but the time required for sequence adaptation increases
Solution Approach 1:
Time segments are pre-configured with standard functional characteristics and parameters before being used in sequence construction. This preliminary preparation allows developers to rapidly assemble sequences by selecting pre-defined building blocks rather than configuring each parameter individually, significantly reducing adaptation time while preserving sequence functionality.
Solution Approach 2:
The system uses template-based time segments that can be copied and reused across different sequences. Once a time segment is configured with specific parameters and characteristics, it can be replicated and adapted for multiple uses, reducing the time required to develop new sequences while maintaining functional versatility.
3Manufacturing precision
If MRI sequences are constructed with detailed manual configuration, then the precision and control over sequence parameters are improved, but the ease of operation and developer burden are worsened
Solution Approach 1:
By segmenting the sequence into standardized time units with predefined parameters, the system maintains precision through controlled parameter sets while improving ease of operation through modular assembly. Each time segment encapsulates specific functional requirements, allowing developers to achieve precise sequence control without manually configuring every parameter from scratch.
Solution Approach 2:
Time segments are designed as universal building blocks that can serve multiple functions and be applied in various sequence contexts. This multi-functionality allows a single time segment template to maintain precision across different applications while reducing the operational burden through reuse and standardization.
Data Source
AI summary
A method for generating an MRI sequence (1) which is characterized in that a first time segment type and a second time segment type differing therefrom are predefined and the MRI sequence (1) is constructed by time segments (5, 6) of the first time segment type and time segments (5, 6) of the second time segment type being strung together alternately.