An Instrumental Electrode Configuration for 3-D Ultrasound Modulated Electrical Impedance Tomography

Xizi Song, Yanbin Xu, Feng Dong, Russell S. Witte

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Ultrasound modulated electrical impedance tomography (UMEIT) is a novel hybrid imaging technique, which utilizes coupling between electric and acoustic modalities. Based on the forward solver along different current directions, an instrumental electrode configuration is proposed for 3-D UMEIT. The proposed electrode configuration can produce a similar longitudinal current, making the power density distribution on the $xy$ plane approximately consistent with the corresponding conductivity distribution. Then, this satisfying power density is adopted to reconstruct a higher-resolution conductivity distribution. Therefore, the proposed electrode configuration contributes to improving the image reconstruction quality of UMEIT. Also, to clearly demonstrate its meaning in theory, the forward solver results are analyzed from an electrical point of view. In addition, the nonlinear partial differential equation relating the power density to the measured data is derived again with a more reasonable expression. Finally, simulation with the realistic geometry model of human breast is done and feasibility verifying experiment is made. Both simulation and experimental results validate the feasibility of the proposed electrode configuration.

Original languageEnglish (US)
Article number7932411
Pages (from-to)8206-8214
Number of pages9
JournalIEEE Sensors Journal
Issue number24
StatePublished - Dec 15 2017


  • Electrode configuration
  • electrical impedance tomography
  • image reconstruction
  • inverse probelm
  • ultrasound modulated electrical impedance tomography

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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