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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 6, June 2000

Table of Contents for this issue

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Three-Dimensional Microwave Tomography: Experimental Imaging of Phantoms and Biological Objects

Serguei Y. Semenov, Alexander E. Bulyshev, Alexandre E. Souvorov, Alexei G. Nazarov, Yuri E. Sizov, Robert H. Svenson, Vitaly G. Posukh, Andrey Pavlovsky, Pavel N. Repin and George P. Tatsis

Page 1071.

Abstract:

Microwave tomographic experiments have been performed on a three-dimensional (3-D) phantom and excised canine heart using a 3-D system operating at frequency of 2.4 GHz. A modified gradient reconstruction approach has been employed for the 3-D image reconstruction. To compare two-dimensional (2-D) and 3-D approaches, we also performed 2-D image reconstruction using an approach based on the Newton method. Experimental data acquired on experimental phantoms were analyzed using both 2-D and 3-D reconstruction approaches. High-quality images were reconstructed using the 3-D approach. The reconstruction procedure failed when the 2-D approach was applied to reconstruct images of the 3-D object. An image of the dielectrical properties of the excised canine heart was obtained using a 3-D reconstruction approach. Images successfully revealed a complex internal structure of the heart, including both right-hand side and left-hand side ventricles.

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