Microwave Breast Imaging Using Multi-Hypothesis Morphological Processing
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Solution Overview
Problem
Microwave imaging for breast cancer detection is hindered by the lack of prior knowledge of the dielectric properties of the breast tissue, leading to poor-quality images due to assumptions made about the medium traversed by electromagnetic waves.
Innovation Solution
A method involving morphological processing of microwave radar images using multiple probe configurations and varying assumptions about the dielectric properties of the breast tissue, combined with persistence evaluation of identified regions of interest, to enhance image quality and detect lesions accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional image processing methods are used, then processing speed is improved, but image quality and diagnostic accuracy deteriorate
Solution Approach 1:
The patent implements dynamic selection of processing hypotheses based on the specific imaging conditions and tissue types being analyzed. The system adapts between different processing models (acoustic impedance-based, speed of sound-based, and attenuation-based hypotheses) rather than using a static conventional method, allowing optimal balance between processing efficiency and diagnostic accuracy for each specific case.
Solution Approach 2:
The patent changes the fundamental parameters used in image processing by implementing multiple hypotheses that differ in their underlying assumptions about microwave propagation. By adjusting which hypothesis model is applied (different physical parameter relationships), the system can optimize both processing speed and diagnostic accuracy depending on the specific clinical scenario and tissue characteristics.
2Measurement precision
If multiple processing hypotheses are implemented, then diagnostic accuracy is improved, but device complexity increases
Solution Approach 1:
The patent segments the image processing task into distinct processing pathways, each corresponding to a specific hypothesis about microwave propagation. By dividing the complex processing into separate modular hypothesis-based streams (acoustic impedance, speed of sound, attenuation), the system can manage complexity through structured organization while maintaining multiple processing approaches.
Solution Approach 2:
The patent creates a universal processing framework that can handle multiple different hypotheses within a single system architecture. The unified platform supports different processing models interchangeably, allowing one system to perform multiple diagnostic functions with varying levels of complexity based on the specific clinical needs, rather than requiring separate systems for each approach.
3Measurement precision
If hypothesis-based processing is used, then image quality is improved, but processing time increases
Solution Approach 1:
The patent applies partial processing approaches by selecting and applying only the necessary hypothesis or combination of hypotheses required for each specific diagnostic task. Rather than always applying all possible processing methods excessively, the system uses just enough processing complexity to achieve the required image quality for the particular clinical scenario, reducing unnecessary processing time.
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 improves the detection of breast lesions by providing high-quality radar images with a high probability of identifying real lesions, reducing artifacts, and enhancing the robustness of the imaging system against interference.
Implementation Method 1
microwave radar images in the medical field using different hypotheses on the medium through which the microwave signals pass
Data Source
Figure 1~2
Figure 3
Figure 4a~4e
AI summary
The invention relates to a method for processing medical images of human tissue of an area of a patient's body and in particular of the breast by means of a medical imaging device (1) comprising a microwave probe array consisting of K > 1 probes spaced apart from one another, the array comprising P > 1 different configurations defining transmitting probes and receiving probes for one or more position(s) around the area, in which the transmitting probes are configured to transmit microwave signals so as to illuminate an area of the body and the receiving probes are configured to receive microwave signals after scattering and reflection in the area, the probes being capable, in a complementary manner, of being configured to transmit and receive simultaneously.