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Updated: May 25, 2026
05:28
Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Software-based microwave CT system consisting of antennas and vector network analyzer.
Takahiro Ogawa1, Michio Miyakawa
1Graduate School of Science and Technology, Niigata University, Niigata 50-2181, Japan. ogawa@melinc.co.jp
Summary
A new software-based microwave CT (SMCT) system uses antennas and a vector network analyzer to collect S-parameters. This method optimizes projection data calculation for improved accuracy and stability in microwave imaging experiments.
Area of Science:
- Medical Imaging
- Microwave Engineering
- Computational Physics
Background:
- Current microwave CT systems face challenges in accuracy and stability.
- Development of cost-effective and versatile imaging solutions is needed.
Purpose of the Study:
- To introduce a novel software-based microwave CT (SMCT) system.
- To demonstrate the system's capability for accurate and stable microwave imaging.
- To present a cost-effective solution for basic microwave imaging studies.
Main Methods:
- Developed a software-based microwave CT system utilizing antennas and a vector network analyzer.
- Collected S-parameters across a frequency range at various measurement positions.
- Implemented an algorithm to calculate the shortest path for projection data acquisition for Circularly Polarized Microwave Computed Tomography (CP-MCT).
Main Results:
- The SMCT system successfully collected S-parameters and calculated projection data.
- The system demonstrated improved accuracy and stability in measurements due to optimized projection calculation from redundant data.
- Experimental results validated the system's usefulness for CP-MCT imaging.
Conclusions:
- The developed SMCT system offers a flexible and accurate approach to microwave imaging.
- Its cost-effectiveness makes it suitable for basic research and experimental studies in CP-MCT.
- SMCT provides a promising platform for advancing microwave imaging techniques.
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