DocumentCode :
247759
Title :
Beamspace time reversal maximum likelihood estimation for microwave breast imaging
Author :
Hossain, Md Delowar ; Mohan, Ananda Sanagavarapu
Author_Institution :
Centre for Health Technol., Univ. of Technol. Sydney (UTS), Sydney, NSW, Australia
fYear :
2014
fDate :
6-11 July 2014
Firstpage :
1921
Lastpage :
1922
Abstract :
We consider maximum likelihood based beamspace time reversal beamforming for breast cancer localization. We reduce the computational burden of maximum likelihood estimation through reduced dimensional beamspace processing. Beamspace processing also provides additional beamspace gain which contributes to suppress strong clutter effects. We collect multistatic scattering fields through FDTD simulation and further process it in beamspace for maximum likelihood based time reversal imaging. The imaging technique is used to localize a small tumor in a dense breast. It is observed that the proposed imaging technique can localize tumors unambiguously even in dense breast phantom.
Keywords :
biomedical imaging; cancer; finite difference time-domain analysis; maximum likelihood estimation; microwave imaging; phantoms; tumours; FDTD simulation; beamspace gain; beamspace time reversal maximum likelihood estimation; breast cancer localization; computational burden; dense breast phantom; localization; maximum likelihood based beamspace time reversal beamforming; maximum likelihood based time reversal imaging; microwave breast imaging; multistatic scattering fields; reduced dimensional beamspace processing; tumor; Breast; Maximum likelihood estimation; Microwave imaging; Microwave theory and techniques; Phantoms; Tumors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
ISSN :
1522-3965
Print_ISBN :
978-1-4799-3538-3
Type :
conf
DOI :
10.1109/APS.2014.6905287
Filename :
6905287
Link To Document :
بازگشت