Microwave Radar and Microwave-Induced Thermoacoustics: Dual-Modality Approach for Breast Cancer Detection

2013 ◽  
Vol 60 (2) ◽  
pp. 354-360 ◽  
Author(s):  
Evgeny Kirshin ◽  
Borislav Oreshkin ◽  
Guangran Kevin Zhu ◽  
Milica Popovic ◽  
Mark Coates
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Breast Cancer Detection ◽  
Dual Modality ◽  
Microwave Radar ◽  
Modality Approach

scholarly journals Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection

2008 ◽  
Vol 2008 ◽  
pp. 1-9 ◽  
Author(s):  
M. Klemm ◽  
I. J. Craddock ◽  
J. A. Leendertz ◽  
A. Preece ◽  
R. Benjamin
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Focal Point ◽  
Breast Cancer Detection ◽  
Improve Image Quality ◽  
Microwave Radar ◽  
Uwb Radar ◽  
Coherent Radar ◽  
Beamforming Algorithm

We have evaluated a modified delay-and-sum (DAS) beamforming algorithm for breast cancer detection with a microwave radar-based system. The improved DAS algorithm uses an additional weight factor calculated at each focal point to improve image quality. These weights essentially represent the quality of preprocessing and coherent radar operation. Using a multistatic UWB radar system based on a hemispherical antenna array, we present experimental detection of 7 mm and 10 mm phantom tumours. We show that the new proposed DAS algorithm improves signal-to-clutter ratio in focused images by 2.65 dB for 10 mm tumour, and by 4.4 dB for 7 mm tumour.

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