DocumentCode :
894170
Title :
FDTD-based time reversal for microwave breast cancer Detection-localization in three dimensions
Author :
Kosmas, Panagiotis ; Rappaport, Carey M.
Author_Institution :
Center for Subsurface Sensing & Imaging Syst., Northeastern Univ., Boston, MA, USA
Volume :
54
Issue :
4
fYear :
2006
fDate :
6/1/2006 12:00:00 AM
Firstpage :
1921
Lastpage :
1927
Abstract :
In a previous study, a novel time-reversal (TR) algorithm based on the finite-difference time-domain (FDTD) method for ultra-wideband microwave breast cancer detection was presented. The system properties and performance were originally studied for two-dimensional (2-D) simplified models and geometries and, more recently, for a realistic breast model based on magnetic resonance imaging measured data. This paper extends this FDTD TR algorithm to a three-dimensional (3-D) case in order to study localization of the tumor target in 3-D. The FDTD TR algorithm solves the full 3-D wave equation and, thus, takes into account polarization effects. In order to compare the new images with previous results, we consider a 2-D planar receiver array, which is an extension of the line of receivers introduced in the 2-D model. A direct comparison from 3-D to 2-D reconstructions illustrates the advantages of using the fully 3-D algorithm, which counterbalances its additional computational cost.
Keywords :
cancer; finite difference time-domain analysis; medical image processing; microwave imaging; microwave receivers; polarisation; tumours; ultra wideband technology; 2D planar receiver array; 2D simplified models; 3D localization; 3D wave equation; FDTD-based time reversal; TR algorithm; breast cancer detection; finite-difference time-domain method; magnetic resonance imaging; microwave detection; microwave imaging; time-reversal algorithm; tumor; ultra-wideband detection; Breast cancer; Cancer detection; Finite difference methods; Geometry; Magnetic properties; Microwave theory and techniques; Solid modeling; Time domain analysis; Two dimensional displays; Ultra wideband technology; Breast cancer detection; finite difference time domain (FDTD); microwave imaging; time reversal (TR);
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2006.871994
Filename :
1618621
Link To Document :
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