Automatic 2D Reconstruction Layer Positioning in MRI
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Solution Overview
Problem
The manual positioning of 2D reconstruction planes in magnetic resonance imaging is laborious and often inaccurate, making it difficult to obtain comparable 2D reconstruction images from 3D image data sets, especially when anatomical structures need to be accurately represented.
Innovation Solution
A method that uses layer position information to automatically define and adapt the position of 2D reconstruction layers within the 3D image data set, either by storing pre-recorded information or utilizing recognition software for anatomical alignment, allowing for precise reconstruction of 2D images in the same layers as the original 2D recordings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning of 2D reconstruction planes is used, then the operator can visually control the orientation and positioning of layers, but the process becomes laborious and relatively inaccurate
Solution Approach 1:
The system automatically determines the position of 2D reconstruction layers by utilizing stored layer position information from previous 2D recordings. The computer automatically adapts the reconstruction parameters without requiring manual operator intervention, making the system self-sufficient in positioning tasks.
Solution Approach 2:
Layer position information from preliminary 2D recordings is stored in advance and later reused for 2D reconstruction from 3D data. This preliminary capture and storage of positioning data eliminates the need for repeated manual positioning operations.
2Manufacturing precision
If manual positioning of 2D reconstruction planes is used, then the operator can define reconstruction planes, but the process takes place relatively inaccurately since the orientation and positioning is visually controlled by the user
Solution Approach 1:
The manual visual positioning process is replaced by an automated computer-based system that uses stored layer position information and recognition software to automatically determine and adapt reconstruction parameters, substituting mechanical/manual operations with automated computational processes.
Solution Approach 2:
Stored layer position information acts as an intermediary between the 3D image data set and the 2D reconstruction process. This intermediate data structure enables automatic adaptation of reconstruction parameters without requiring direct manual intervention.
3Reliability
If 2D reconstruction images are to be comparable with original 2D images, then they must be reconstructed in the same layer position, but this requires precise manual positioning which is difficult to achieve
Solution Approach 1:
The system copies stored layer position information from previous 2D recordings and applies it to the 2D reconstruction process. This copying mechanism ensures that reconstruction images are generated in the exact same layer positions as the original recordings, guaranteeing comparability without manual re-positioning.
Solution Approach 2:
The system uses stored layer position information as feedback to automatically adjust and adapt reconstruction parameters. This feedback loop ensures that the reconstruction process continuously references the original positioning data, maintaining positional consistency and comparability.
Data Source
AI summary
A method is disclosed for generating 2D reconstruction images in the scope of image post-processing from a 3D image data set of a study object recorded particularly by use of a magnetic resonance device. In the method, the position of the 2D reconstruction layers in which the 2D reconstruction images lie is defined with the aid of layer position information which defines the position of individual 2D recording layers in which 2D layer images are recorded after recording the 3D image data set of the study object, or have already been recorded, and which is optionally stored in an operating mode for automatic layer position adaptation, or with the aid of layer position information defining 2D reconstruction layers which is stored in an operating mode for automatic layer position adaptation.