MR System Compensation Interface for Scan Unit Deviations
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Solution Overview
Problem
Magnetic resonance imaging systems face challenges in generating high-quality images due to deviations from ideal physical models, leading to artifacts and degraded image quality, as each application requires tailored compensation code for individual scan units, resulting in high programming overhead and limited independence between applications.
Innovation Solution
An MR system compensation interface that receives hardware parameters from individual scan units to determine imperfection models and compensation models, allowing for the modification of pulse sequences and image reconstruction algorithms to account for deviations, enabling independent application development with reduced overhead and improved image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each application requires tailored compensation code for individual scan units, then image quality is improved, but programming overhead increases
Solution Approach 1:
The patent segments the compensation system into two independent parts: a hardware-specific imperfection model determination module that characterizes individual scan units, and a universal application layer that uses pre-determined compensation models. This segmentation allows applications to be developed independently without needing custom compensation code for each scan unit, reducing programming overhead while maintaining image quality.
Solution Approach 2:
The patent performs preliminary characterization of scan unit imperfections during hardware setup or calibration, storing these as imperfection models. This preliminary action captures hardware-specific deviations before application development, allowing applications to use generic compensation models that work across different scan units without requiring tailored programming.
2Measurement precision
If each application requires tailored compensation code for individual scan units, then image quality is improved, but application independence is reduced
Solution Approach 1:
The patent creates a universal compensation model that can be applied across multiple applications and scan units. The imperfection models are determined at the hardware level and stored as general characteristics, allowing any application to use the same compensation approach without modification. This universality enables application independence while maintaining compensation effectiveness for image quality.
3Reliability
If compensation models are determined for each scan unit, then deviations are compensated effectively, but system complexity increases
Solution Approach 1:
The patent creates simplified copies or representations of scan unit imperfections in the form of imperfection models. These models are mathematical or computational representations that capture essential hardware deviations without requiring complex physical modifications or custom compensation code for each unit. The copying approach maintains compensation accuracy while reducing system complexity.
Data Source
AI summary
A magnetic resonance (MR) system compensation interface having: a hardware subinterface configured to receive individual hardware parameters from an individual scan unit of an MR system; a model determination unit configured to determine an imperfection model on the basis of the hardware parameters; a compensation model determination unit configured to determine a compensation model on the basis of the imperfection model; an application subinterface configured to receive application data assigned to an application; and a compensation unit configured to determine compensated application data on the basis of the received application data and the determined compensation model.