Non-Uniform Breast Phantom for Mammography Correction Testing
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Solution Overview
Problem
Existing breast phantoms for mammography imaging do not accurately simulate the non-uniform compression thickness of breasts due to their uniform compression, leading to inadequate evaluation of mammography imaging devices and inconsistent image quality.
Innovation Solution
A breast phantom with non-uniform thickness is developed, mimicking clinically realistic variations in compressed breast thickness, allowing for effective testing of image correction algorithms and ensuring reproducible image quality evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform compression is applied to the breast phantom, then the compression setup is simple and consistent, but the image quality evaluation is inadequate because it does not simulate realistic non-uniform breast thickness
Solution Approach 1:
The breast phantom incorporates a non-uniform thickness design where different regions of the phantom have varying thicknesses to simulate the natural variation in breast tissue depth. This local variation in geometry allows the phantom to realistically represent clinical conditions while maintaining a relatively simple overall structure that can be manufactured and used consistently.
2Measurement precision
If non-uniform thickness phantom is used, then image correction algorithm testing is improved, but the compression setup becomes more complex
Solution Approach 1:
The non-uniform thickness is pre-formed into the phantom structure during manufacturing, eliminating the need for complex real-time compression adjustments during operation. The phantom is designed with the desired thickness variation pattern built-in, allowing for straightforward placement and compression during imaging procedures while still providing realistic non-uniform thickness for algorithm evaluation.
3Productivity
If uniform compression is used for all phantoms, then the testing procedure is consistent and repeatable, but the evaluation does not cover the full range of operational conditions including paddle deflection up to 1.0 cm
Solution Approach 1:
The phantom design incorporates variable thickness parameters that reflect the range of breast depths encountered in clinical practice. By embedding these thickness variations directly into the phantom structure, the system maintains testing consistency through standardized phantom placement while simultaneously covering the full range of operational conditions including scenarios that produce up to 1.0 cm of compression paddle deflection.
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
The phantom enables accurate evaluation of mammography imaging devices by simulating non-uniform breast compression, enhancing image correction processes and ensuring consistent image quality across multiple test setups.
Implementation Method 1
The breast phantoms are formed from materials that mimic the physical structure of the breast, such as the compressibility of the breast
Data Source
AI summary
A breast phantom is provided that has a non-uniform thickness to mimic clinically realistic variations in compressed breast thicknesses when in contact with the compression paddle during a mammography imaging procedure. With the non-uniform thickness, the breast phantom enables a mammography imaging device to be tested for image quality with regard to image correction processes and/or algorithms employed by the mammography imaging device to address non-uniformity in the thickness of the imaged breast. The breast phantom can be made of one or more sections, with one or more of the sections having a non-uniform thickness.