Incorporating estimated Green's functions in microwave breast cancer imaging with DORT

Mohammed Jainul Abedin, Stuart G. Hay, Iain B. Collings

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

The decomposition of reversed time (DORT) method is a promising algorithm for microwave breast cancer imaging. However when DORT is applied to breasts with high percentage of glandular tissues, its performance decreases due to differences in the dielectric properties of the physical and computational media. We propose a new method of deriving pair wise permittivities by using the received scattered signals in a multi antenna imaging system. We propose to use the estimated permittivities when computing the Green's function in the backpropagation step of DORT rather than using a nominal global value. We also propose to combine multiple eigenvectors of the time reversal operator. It is observed through simulation that our enhanced DORT method achieves improved focusing accuracy in detecting the breast malignancy.

Original languageEnglish
Title of host publication2014 International Workshop on Antenna Technology
Subtitle of host publicationSmall Antennas, Novel EM Structures and Materials, and Applications (iWAT)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages163-166
Number of pages4
ISBN (Electronic)9781479923298
ISBN (Print)9781479981137
DOIs
Publication statusPublished - 14 Nov 2014
Externally publishedYes
Event2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications, iWAT 2014 - Sydney, Australia
Duration: 4 Mar 20146 Mar 2014

Other

Other2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications, iWAT 2014
CountryAustralia
CitySydney
Period4/03/146/03/14

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Keywords

  • breast cancer detection
  • DORT
  • Green's function estimation

Cite this

Abedin, M. J., Hay, S. G., & Collings, I. B. (2014). Incorporating estimated Green's functions in microwave breast cancer imaging with DORT. In 2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) (pp. 163-166). [6958627] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/IWAT.2014.6958627