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Multi-Element UWB Probe Optimization for Medical Microwave Imaging.

Youness Akazzim1,2, Otman El Mrabet2, Jordi Romeu1

  • 1School of Telecommunication Engineering, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain.

Sensors (Basel, Switzerland)
|January 8, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a novel microwave imaging system using fewer antennas for precise medical imaging. The system accurately locates targets in a brain phantom, advancing non-ionizing imaging techniques.

Keywords:
UWB imagingbrain imagingfocusing techniquemedical applicationsmicrowave imaging systems

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Area of Science:

  • Biomedical Engineering
  • Electromagnetics
  • Medical Imaging

Background:

  • Non-ionizing medical imaging techniques are crucial.
  • Microwave imaging systems have advanced with more antennas and bandwidth for better resolution.
  • Existing systems require numerous antennas for accurate object localization.

Purpose of the Study:

  • To present a novel microwave imaging system.
  • To reduce the number of antennas required for precise target localization in medical applications.
  • To enable control over longitudinal and transversal image dimensions.

Main Methods:

  • Utilized four Ultra-Wideband Extended Gap Ridge Horn (UWB EGRH) antennas.
  • Covered a frequency band from 0.5 GHz to 1.5 GHz.
  • Mounted antennas on a cylindrical brain phantom with an orthogonal probe set.
  • Tested numerically and experimentally.

Main Results:

  • Successfully detected a cylindrical target within a human brain model.
  • Demonstrated control over longitudinal and transversal image dimensions.
  • Achieved precise target location with a reduced antenna configuration.

Conclusions:

  • The proposed system offers an effective solution for medical microwave imaging.
  • Reduced antenna count enhances practicality for medical applications.
  • The system shows promise for accurate non-ionizing imaging of internal body structures.