Feasibility study of tumor size classification via contrast-enhanced UWB breast imaging - A complex-domain analysis

S. W. Ahmad*, Y. Chen, P. Kosmas, W. L. Woo, S. S. Dlay

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Lesion classification using the tumor's backscatter signature can be very challenging in microwave breast imaging due to the small intrinsic contrast between the dielectric properties of dysplastic and normal tissues. A possible solution to this problem is to use microwave contrast agents such as microbubbles, where the differential breast response before and after the administration of the agent to a dysplastic inclusion is used to classify various anomaly properties (size, depth, morphology, etc.). In this paper, we study the feasibility of contrast-agent-aided imaging for lesion size classification by studying received signals in the complex domain. A finite-difference time-domain (FDTD) numerical phantom is employed to simulate electromagnetic (EM) wave propagation inside the breast and extract the reflected waveforms with and without microbubbles in the tumor site. The complex-domain transfer function of differential response is then used to draw the poles-zero plots (PZPs) and Bode plots (BPs), which demonstrate the viability of the proposed method for lesion size categorization.

Original languageEnglish
Title of host publication2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
PublisherIEEE
Number of pages4
ISBN (Electronic)9781424460519
ISBN (Print)9781424451173
DOIs
Publication statusPublished - 20 Oct 2011
Event2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011 - Istanbul, Turkey
Duration: 13 Aug 201120 Aug 2011

Conference

Conference2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
CountryTurkey
CityIstanbul
Period13/08/1120/08/11

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