MRI Spectrum Generation Using Morphology-Based Neural Estimation

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Solution Overview

Problem

Existing technologies have not effectively addressed the challenge of generating a magnetic resonance spectroscopy (MRS) spectrum that accurately reproduces a measured spectrum, and there is a gap between the existing technologies have not addressed the challenge of generating a magnetic resonance spectroscopy (MRS) spectrum that accurately reproduces a magnetic resonance spectroscopy (MRS) spectrum that accurately reproduces a magnetic resonance spectroscopy (MRS) spectrum that accurately reproduces a measured spectrum.

Innovation Solution

A spectrum generation apparatus and a magnetic resonance imaging apparatus and a magnetic resonance imaging apparatus and a magnetic resonance spectroscopy (MRS) spectrum that accurately reproduces a measured spectrum.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If artificial spectrum generation is performed using simulation, then the spectrum can be generated without actual measurement, but the accuracy of the generated spectrum is insufficient and there is a gap between the artificial spectrum and the measured spectrum

Engineering Contradiction:
Improvespectrum accuracyVSAvoidspectrum generation feasibility
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent uses deep learning to create a neural network that copies the complex relationships between morphological parameters and spectral characteristics. The network is trained on measured spectrum data to learn the mapping relationships, enabling it to generate artificial spectra that accurately replicate real measurement characteristics without requiring actual physical measurement for each case.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent transforms the spectrum generation approach by changing from direct physical simulation to data-driven parameter transformation. The neural network learns to transform morphological correlation parameters into spectral parameters through training on measured data, allowing accurate spectrum generation by transforming input parameters rather than through physical simulation.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If traditional simulation methods are used for spectrum generation, then the process is simple, but the generated spectrum cannot completely reproduce the measured spectrum characteristics

Engineering Contradiction:
Improvespectrum reproduction accuracyVSAvoidgeneration system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional physical simulation mechanisms with a neural network-based computational system. Instead of using complex physical models to simulate spectrum generation, the system uses a neural network that has learned the underlying relationships from training data, substituting mechanical/physical simulation with intelligent computational transformation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The neural network acts as an intermediary between the morphological correlation parameters and the spectral output. It mediates the transformation by learning the complex mapping relationships from training data, enabling accurate spectrum generation without requiring direct physical simulation or complex analytical models.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250389801A1Spectrum generation apparatus and magnetic resonance imaging apparatus
Publication Date: 2025.12.25 CANON KK
  • US20250389801A1 patent drawing
  • US20250389801A1 patent drawing
  • US20250389801A1 patent drawing

AI summary

According to one embodiment, a spectrum generation apparatus executing: acquiring, for each of a plurality of voxels included in a VOI, a parameter value of one or more kinds of morphological correlation parameters correlated to a morphology in the VOI; estimating, for each of the voxels, a parameter value of one or more spectrum generation parameters based on the parameter value of the morphological correlation parameter; and applying the parameter value of the one or more spectrum generation parameters of each of the voxels to a basis spectrum to generate a plurality of first artificial spectra corresponding to the voxels and generate a second artificial spectrum corresponding to the VOI based on the first artificial spectra.