Noninvasive recovery of skin thickness and its dielectric properties in the microwave range: a two-dimensional time-domain inverse-scattering algorithm

Milica Popović*, Allen Taflove

*Corresponding author for this work

Research output: Contribution to journalConference article

Abstract

Motivated by the need to calibrate the recently proposed microwave breast tumor detection system, we present results of development of a two-dimensional time-domain inverse-scattering algorithm for determining skin thickness, and relative permittivity εr-skin and electric conductivity σskin in the microwave range. The algorithm traces a search trajectory in the (εr-skin, σskin) space. The minimal parameter estimation error along this trajectory yields a set of correct parameter values. These results of the inverse-scattering technique depend on the shape and the duration of the pulse chosen for the electrical parameter reconstruction. The time-domain nature of the inverse-algorithm allows for limiting the region of inversion. Thus, when the parameters of the skin are estimated, the skin thickness can be determined by comparing the measurement with a simulated all-skin response.

Original languageEnglish (US)
Pages (from-to)2256-2259
Number of pages4
JournalAnnual Reports of the Research Reactor Institute, Kyoto University
Volume3
StatePublished - Dec 1 2001
Event23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Istanbul, Turkey
Duration: Oct 25 2001Oct 28 2001

Keywords

  • Breast cancer
  • FDTD
  • Inverse-scattering
  • Microwave
  • Skin
  • Time-domain

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering

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