Biplane Image Reconstruction for Motion and Artifact Correction
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Solution Overview
Problem
Existing medical imaging technologies face challenges in correcting movement artifacts and scattered radiation artifacts in biplane angiography systems, particularly when compensating for movements within the plane of rotation, which can obscure relevant image areas and complicate diagnostic assessments.
Innovation Solution
A computer-implemented method using a medical biplane imaging device that acquires simultaneous projection mappings in non-parallel detection planes, determines a correction model based on consistency conditions, and reconstructs a result dataset to correct artifacts and movements, incorporating physiological movement signals for enhanced precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If projection mappings are acquired simultaneously in two non-parallel detection planes, then movement artifacts and scattered radiation artifacts can be corrected more accurately, but the device complexity increases
Solution Approach 1:
The imaging system is segmented into two independent imaging units, each with its own detection plane oriented at different angles. This segmentation allows each plane to capture different aspects of the object, enabling more accurate artifact correction through comparative analysis while distributing the complexity across separate modules rather than requiring a single complex system
Solution Approach 2:
A correction model serves as an intermediary between the two projection mappings. This model processes the consistency conditions derived from both detection planes and generates corrected images, mediating the complex interaction between multiple data sources and producing the final corrected output without requiring direct complex integration of all components
2Measurement precision
If correction models are determined using consistency conditions from multiple projection mappings, then artifact correction accuracy improves, but the processing time increases
Solution Approach 1:
Consistency conditions are pre-calculated from the projection mappings before the actual correction process. By preparing these conditions in advance, the system reduces the computational burden during real-time correction, maintaining high accuracy while minimizing processing time losses
Solution Approach 2:
The system uses partial information from the projection mappings to determine correction models. Rather than processing all possible data comprehensively, it selectively uses consistency conditions that are most critical for artifact correction, achieving sufficient accuracy with reduced processing requirements
3Productivity
If biplane imaging is used to reduce acquisition time and movement risk, then productivity improves, but the device complexity and cost increase
Solution Approach 1:
Two imaging units are merged into a single biplane system with coordinated operation. By combining the capabilities of multiple detectors and sources into one integrated system, the patent achieves rapid simultaneous acquisition from different angles while managing complexity through unified control and coordinated operation rather than separate independent systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables high-resolution, time-efficient correction of movement and radiation artifacts, allowing for accurate 2D and 3D spatially resolved imaging with minimized radiation exposure.
Implementation Method 1
The first imaging unit may have a first source and a first detector, for example a first flat-panel detector. Furthermore, the second imaging unit may have a second source and a second detector, for example a second flat-panel detector
Data Source
AI summary
A computer-implemented method includes where at least one projection mapping pair of an object under examination by a medical biplane imaging device is acquired. The at least one projection mapping pair contains a first and a second projection mapping of the object under examination, that map the object under examination simultaneously in a first and a second detection plane. The first and second detection planes are arranged non-parallel to one another. A correction model for the correction of an artifact and/or a movement is determined. The artifact or the movement is mapped simultaneously in the at least one first and the at least one second projection mapping. The at least one projection mapping pair specifies a consistency condition for the determination of the correction model. The result dataset is reconstructed at least from the at least one first projection mapping and on the basis of the correction model.