MRI Apparatus Section Position Automation

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Solution Overview

Problem

Users face difficulties in obtaining images with the same section position across different MRI techniques, particularly when comparing images from 2D and 3D imaging methods or images created using different sequences, as existing methods require manual selection and comparison of multiple cutout sections, increasing user burden.

Innovation Solution

A magnetic resonance imaging apparatus and method that includes a setting unit for section position, a first image creating unit for creating images using multi-planar reformat (MPR) based on magnetic resonance signals from 3D regions, and a determining unit to automatically determine and create images at consistent section positions across different imaging sequences and techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual selection of cutout sections is used to obtain images with the same section position across different MRI techniques, then image consistency can be achieved, but user burden increases and operation becomes time-consuming

Engineering Contradiction:
Improveimage consistencyVSAvoiduser burden
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system automatically determines corresponding section positions between different MRI images without requiring manual user intervention. The image processing unit autonomously performs the task of selecting and matching cutout sections across different imaging sequences, making the system self-sufficient in achieving image consistency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-processes and stores section position information from reference images before actual comparison is needed. By提前 establishing the relationship between section positions in different imaging techniques, the system eliminates the need for manual selection during the actual image matching process.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple cutout sections are manually selected to compare images from different sequences, then comprehensive comparison is possible, but the number of operations increases

Engineering Contradiction:
Improvecomparison capabilityVSAvoidoperation steps
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system combines multiple comparison operations into a single automated process. Instead of requiring separate manual selections for each cutout section comparison, the image processing unit integrates the determination of corresponding sections and the comparison process into one unified automated operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The image processing unit is designed to handle multiple imaging sequences and different cutout section requirements through a single automated algorithm. This multi-functional capability allows the system to adapt to various comparison scenarios without requiring different operational procedures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If section positions are manually determined for each image, then precise matching can be achieved, but time consumption increases

Engineering Contradiction:
Improvesection position accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system replaces the manual mechanical process of section position determination with an automated computational algorithm. The image processing unit uses digital image processing techniques to automatically identify and match corresponding section positions, substituting human manual operations with automated mechanical-computational processes.

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

Solution Approach 2:

The system employs feedback mechanisms where the image processing unit continuously refines its determination of corresponding section positions based on image data analysis. By using feedback from image comparison results to adjust and improve position matching accuracy, the system achieves precise matching automatically without time-consuming manual adjustments.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9795318B2Magnetic resonance imaging apparatus and magnetic resonance imaging method
Publication Date: 2017.10.24 TOSHIBA MEDICAL SYST CORP
  • US9795318B2 patent drawing
  • US9795318B2 patent drawing
  • US9795318B2 patent drawing

AI summary

A magnetic resonance imaging apparatus includes a setting unit which sets a section position, a first image creating unit which creates a first image at the set section position by a multi planar reformat on the basis of a magnetic resonance signal collected from a subject by a first imaging sequence at a 3D region or multiple section positions different from the set section position, a determining unit which determines a section position of the first image, and a second image creating unit which creates a second image at the determined section position by the multi planar reformat on the basis of a magnetic resonance signal collected from the subject by a second imaging sequence different from the first imaging sequence at a 3D region or multiple section positions different from the determined section position.