Composite FDK and MAR Image Display for Maxillofacial CT
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Solution Overview
Problem
Conventional x-ray CT imaging methods for the maxillofacial region require practitioners to compare and interpret images reconstructed using FDK and MAR algorithms to avoid misdiagnosis, which is cumbersome and time-consuming due to the need for two separate image sets, complicating the visualization of metal artifacts and contrast-to-noise ratio.
Innovation Solution
A method and apparatus for CBCT imaging that allows simultaneous display of FDK and MAR data volumes, enabling selection and comparison of regions of interest within the same image slice, with the option to superimpose or replace data portions, simplifying the diagnostic process by providing complementary information directly within the same view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If practitioners use two separate image sets (FDK and MAR) for comparison to avoid misdiagnosis, then diagnostic accuracy is improved, but the complexity of image interpretation and time consumption increase
Solution Approach 1:
The patent combines FDK and MAR reconstructed images into a single composite image display, allowing practitioners to view both reconstruction types simultaneously in different regions of the same image interface, thereby maintaining diagnostic accuracy while reducing interpretation complexity
Solution Approach 2:
The composite image is segmented into different regions where FDK and MAR images are displayed in different areas, allowing comparative analysis while presenting both types in a unified interface rather than requiring separate image sets
2Reliability
If practitioners use two separate image sets (FDK and MAR) for comparison to avoid misdiagnosis, then diagnostic accuracy is improved, but time consumption increases
Solution Approach 1:
By merging FDK and MAR images into a single composite display, the system eliminates the need for practitioners to switch between separate image sets, thereby maintaining diagnostic accuracy while significantly reducing interpretation time
3Measurement precision
If MAR algorithm is used to reduce metal artifacts, then contrast-to-noise ratio is improved, but information close to metal-generated data may reduce contrast-to-noise ratio
Solution Approach 1:
The system segments the display into regions showing both FDK and MAR images, allowing practitioners to observe areas with metal artifacts in one region and artifact-reduced areas in another region of the same composite image
Solution Approach 2:
Different regions of the composite image display different reconstruction qualities - FDK regions preserve metal artifact information while MAR regions provide improved contrast-to-noise ratio, allowing local optimization for different diagnostic needs
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
This approach simplifies the comparison and interpretation of FDK and MAR images, reducing the risk of misdiagnosis by allowing practitioners to dynamically view and analyze both data types within the same image slice, thereby enhancing diagnostic efficiency and accuracy.
Implementation Method 1
acquiring a set of data relative to a patient's maxillofacial region through an x-ray CT imaging apparatus
Data Source
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AI summary
Certain exemplary method and/or apparatus embodiments herein can include -acquiring a set of data relative to a patient's maxillofacial region through an x-ray CT imaging apparatus, -reconstructing two or more types of maxillofacial data volumes from the same acquired set of data, -displaying at least one slice of the patient's maxillofacial region with a first type of data volume among the volumes (e.g., FDK volume and MAR volume), -selecting a region of interest (ROI) in the displayed at least one slice, a first portion of said first type of data volume being displayed within the ROI, - displaying within the selected ROI a second portion of a second type of data volume, the at least one slice of the patient's maxillofacial region being displayed with the first type of data volume while the ROI is displayed with the second portion of the second type of data volume.