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Related Experiment Video

Updated: Apr 19, 2026

Clinical Imaging of Microwave Mammography
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3D parallel-detection microwave tomography for clinical breast imaging.

N R Epstein1, P M Meaney2, K D Paulsen2

  • 1Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada.

The Review of Scientific Instruments
|January 3, 2015
PubMed
Summary

This study details a new 3D biomedical microwave tomography system for clinical use, enhancing speed and performance for accurate breast cancer imaging. The system achieves faster data acquisition and improved signal detection for better diagnostic capabilities.

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Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Electromagnetics

Background:

  • Microwave tomography offers non-ionizing 3D imaging potential for medical applications.
  • Previous systems faced limitations in speed, packaging, and performance for clinical translation.

Purpose of the Study:

  • To present a re-engineered biomedical microwave tomography system with enhanced 3D imaging capabilities for clinical application.
  • To improve data acquisition speed, system performance, and overall diagnostic accuracy.

Main Methods:

  • Hardware updates and electronic network reconfiguration for streamlined packaging.
  • Upgraded data acquisition and microwave components for increased speed and wider bandwidth.
  • Modified monopole antenna array with independent sub-array motion for volumetric data acquisition.

Main Results:

  • Data acquisition time reduced to 5.8 seconds per fixed array position/frequency.
  • Achieved a dynamic range >110 dB across 500-2900 MHz with measurement deviations <0.33% amplitude and <0.5° phase.
  • Demonstrated accurate 3D dielectric property recovery in breast phantoms using in-plane and cross-plane data.

Conclusions:

  • The enhanced microwave tomography system is clinically viable, offering improved speed and performance.
  • The system's design facilitates full volumetric data acquisition for comprehensive 3D imaging.
  • Accurate 3D dielectric property reconstruction shows promise for improved breast cancer detection.