Title :
An ultra-wideband microwave tomography system: Preliminary results
Author :
Gilmore, Colin ; Mojabi, Puyan ; Zakaria, Amer ; Ostadrahimi, Majid ; Kaye, Cam ; Noghanian, Sima ; Shafai, Lotfollah ; Pistorius, Stephen ; LoVetri, Joe
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
We describe a 2D wide-band multi-frequency microwave imaging system intended for biomedical imaging. The system is capable of collecting data from 2-10 GHz, with 24 antenna elements connected to a vector network analyzer via a 2 times 24 port matrix switch. Through the use of two different nonlinear reconstruction schemes: the Multiplicative-Regularized Contrast Source Inversion method and an enhanced version of the Distorted Born Iterative Method, we show preliminary imaging results from dielectric phantoms where data were collected from 3-6 GHz. The early inversion results show that the system is capable of quantitatively reconstructing dielectric objects.
Keywords :
biomedical imaging; microwave imaging; network analysers; phantoms; tomography; 2D ultrawideband microwave tomography; Distorted Born Iterative Method; Multiplicative-Regularized Contrast Source Inversion; biomedical imaging; dielectric phantoms; frequency 2 GHz to 10 GHz; vector network analyzer; Algorithms; Biomedical Engineering; Calibration; Equipment Design; Humans; Microwaves; Models, Statistical; Phantoms, Imaging; Reproducibility of Results; Signal Processing, Computer-Assisted; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5335060
