Active Microwave Imaging for Breast Cancer Detection

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Active Microwave Imaging for Breast Cancer Detection

Show simple item record Bindu, G Anil, Lonappan Vinu, Thomas Aanandan,C K Mathew, K T 2012-02-07T08:36:12Z 2012-02-07T08:36:12Z 2006
dc.description.abstract Active microwave imaging is explored as an imaging modality for early detection of breast cancer. When exposed to microwaves, breast tumor exhibits electrical properties that are significantly different from that of healthy breast tissues. The two approaches of active microwave imaging — confocal microwave technique with measured reflected signals and microwave tomographic imaging with measured scattered signals are addressed here. Normal and malignant breast tissue samples of same person are subjected to study within 30 minutes of mastectomy. Corn syrup is used as coupling medium, as its dielectric parameters show good match with that of the normal breast tissue samples. As bandwidth of the transmitter is an important aspect in the time domain confocal microwave imaging approach, wideband bowtie antenna having 2:1 VSWR bandwidth of 46% is designed for the transmission and reception of microwave signals. Same antenna is used for microwave tomographic imaging too at the frequency of 3000 MHz. Experimentally obtained time domain results are substantiated by finite difference time domain (FDTD) analysis. 2-D tomographic images are reconstructed with the collected scattered data using distorted Born iterative method. Variations of dielectric permittivity in breast samples are distinguishable from the obtained permittivity profiles. en_US
dc.description.sponsorship Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Progress In Electromagnetics Research en_US
dc.subject Microwave Imaging en_US
dc.subject Breast Cancer en_US
dc.subject Breast tumor en_US
dc.title Active Microwave Imaging for Breast Cancer Detection en_US
dc.type Working Paper en_US

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