Noninvasive breast tumor localization based on ultrawideband microwave backscatter

Ahmad AbdulSadda, Nidhal Bouaynaya, Kamran Iqbal

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

1 Scopus citations

Abstract

The key to surgical planning for breast conservation is tumor localization. An accurate localization of the breast tumor is essential to guide the surgeon to the lesion, and ensure its correct and adequate removal with satisfactory excision margins. Current breast tumor localization techniques are invasive and often result in a cosmetic disfigurement. In this paper, we use the ultrawide band radar-based microwave breast imaging technique to non-invasively localize (impalpable) tumors in the breast. We consider four clinically important lesion features: location, size, depth and spatial orientation within the breast. A comparison of the energy of the received signal from healthy and cancerous breasts exhibits some significant differences in some frequency bands. We, therefore, use the energy spectrum of the receiving antenna signal decomposed by wavelet transform as the input to a genetic neural network (GNN) classifier. Furthermore, for improved efficiency, we optimize the structure of the GNN for optimum initial weights and number of hidden nodes. We use CST Microwave Studio to simulate benign and malignant breast conditions, and generate a data set of 1024 cancer cases with various tumor location, size, depth and spatial orientation within the breast. Our results show that the proposed algorithm gives accurate localization of the breast lesion, and possesses a high sensitivity to small tumor sizes. Additionally, it can accurately detect and classify multiple tumors.

Original languageEnglish (US)
Title of host publication2010 International Conference on Signal Processing and Communications, SPCOM 2010
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 International Conference on Signal Processing and Communications, SPCOM 2010 - Bangalore, India
Duration: Jul 18 2010Jul 21 2010

Publication series

Name2010 International Conference on Signal Processing and Communications, SPCOM 2010

Other

Other2010 International Conference on Signal Processing and Communications, SPCOM 2010
Country/TerritoryIndia
CityBangalore
Period7/18/107/21/10

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

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