MRI Scan Condition Determining Device Optimizes Matrix Parameters
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Solution Overview
Problem
Magnetic resonance imaging (MRI) system operators face a significant burden in optimizing scan conditions due to the complexity of adjusting multiple physical parameters, often requiring a trial-and-error process to achieve desired settings for imaging range, spatial resolution, and signal-to-noise ratio (SNR).
Innovation Solution
A scan condition determining device that automatically sets and optimizes parameters such as matrix numbers, bandwidth, number of additions, echo train length, repetition time, and other physical parameters based on pre-set imaging range and desired SNR, using historical statistics to determine optimal combinations that minimize scan time while meeting desired image quality criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If operators manually adjust multiple physical parameters through trial and error to achieve desired imaging settings, then the parameters can be optimized, but the operator burden and time consumption increase significantly
Solution Approach 1:
The system performs self-optimization of scan conditions by automatically calculating optimal parameter combinations based on input requirements. The determining unit computes matrix numbers, bandwidth, number of additions, and other physical parameters without requiring manual trial-and-error adjustment by operators, thereby reducing time consumption while maintaining optimization accuracy.
2Manufacturing precision
If operators manually adjust multiple physical parameters to achieve desired settings, then optimal image quality can be obtained, but the complexity and burden on the operator increases
Solution Approach 1:
The system extracts and automates the complex parameter adjustment process from manual operator intervention. The determining unit independently calculates optimal values for matrix numbers, bandwidth, number of additions, and other physical parameters based on imaging requirements, removing the burden of complex multi-parameter coordination from the operator while maintaining optimal image quality.
Solution Approach 2:
The determining unit acts as an intermediary between the operator's simple input requirements and the complex physical parameters needed for optimal imaging. It translates high-level imaging requirements into specific parameter values, shielding the operator from the complexity of multiple interrelated physical parameters while ensuring optimal image quality.
3Manufacturing precision
If more physical parameters are adjusted to improve imaging quality, then image quality and SN ratio improve, but the number of parameters to adjust and the complexity increase
Solution Approach 1:
The system automatically determines optimal values for multiple physical parameters including matrix numbers in frequency and phase encode directions, bandwidth, number of additions, echo train length, repetition time, inversion time, and echo time. By programmatically calculating and coordinating changes across all these parameters simultaneously, the system achieves improved image quality and SN ratio without increasing operational complexity for the user.
Data Source
AI summary
A scan condition determining apparatus determines scan conditions in a magnetic resonance imaging system. The scan condition determining apparatus includes: a setting unit for setting an imaging range, a desired spatial resolution and a desired SN ratio; and a determining unit for determining a matrix number in a frequency encode direction and a matrix number in a phase encode direction, based on the imaging range and the desired spatial resolution set by the setting unit and determining physical parameters different from the matrix number in a frequency encode direction and a matrix number in a phase encode direction, based on the determined matrix numbers, the set imaging range and the set desired SN ratio.