MRI-Based Electrical Properties Tomography for Directional Anisotropy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical properties tomography (EPT) methods lack the ability to differentiate electrical properties along various directions, limiting their diagnostic value.
Innovation Solution
A method and system for EPT that derives partial electrical properties and anisotropy by analyzing magnetic resonance imaging data, using techniques such as Diffusion Tensor Imaging (DTI) and Susceptibility Tensor Imaging (STI), and outputs anisotropy of electrical properties for anatomical regions, enabling differentiation along different directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional EPT methods are used to measure electrical properties, then the measurement process is non-invasive and provides spatial distribution of conductivity and permittivity, but the method cannot differentiate electrical properties along various directions
Solution Approach 1:
The patent extends conventional EPT from scalar electrical property measurement to tensor-based anisotropic measurement by acquiring data along multiple spatial directions (x, y, z axes). This dimensional expansion allows differentiation of electrical properties along various directions, transforming the measurement from isotropic (single value) to anisotropic (direction-dependent values) without requiring invasive procedures.
2Reliability
If multiple imaging sequences (DTI, STI, EPT) are integrated to provide comprehensive anisotropy information, then diagnostic accuracy is improved, but system complexity increases
Solution Approach 1:
The patent integrates multiple imaging modalities (Diffusion Tensor Imaging, Susceptibility Tensor Imaging, and Electrical Properties Tomography) into a unified anisotropic imaging framework. By merging these sequences that probe different physical properties (diffusion, magnetic susceptibility, and electrical conductivity/permittivity), the system provides comprehensive tissue characterization through tensor-based anisotropy measurement, improving diagnostic reliability through multi-parameter assessment.
Solution Approach 2:
The patent develops a universal tensor-based measurement framework that can handle multiple imaging sequences (DTI, STI, EPT) with similar mathematical processing. This multi-functional approach allows the same computational infrastructure to process different types of anisotropic data, reducing overall system complexity despite the integration of multiple imaging modalities.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods and systems for electrical properties tomography imaging are presented. Partial electrical properties for at least one portion of the body are derived based on magnetic resonance imaging data, and anisotropy of electrical properties is displayed accordingly. The electrical properties may comprise conductivity and/or permittivity.