CSI-EPT: A novel contrast source approach to MRI based electric properties tomography and patient-specific SAR

E. Balidemaj, J. Trinks, C. A.T. Van Den Berg, A. J. Nederveen, A. L. Van Lier, L. J.A. Stalpers, J. Crezee, R. F. Remis

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

4 Citations (Scopus)

Abstract

In this paper, we present a novel method (Contrast Source Inversion - Electric Properties Tomography or CSI-EPT) to dielectric imaging of biological tissue using so-called B1+ data measurable by Magnetic Resonance Imaging (MRI) systems. Integral representations for the electromagnetic field quantities are taken as a starting point and we follow an iterative contrast source inversion approach to retrieve the dielectric tissue parameters from measured field data. Numerical results illustrate the performance of the method and show that reliable results are produced near tissue boundaries as opposed to the currently used methods. Fine structures can be resolved as well and since CSI-EPT reconstructs the electric field strength inside a scanning region of interest, it is also a promising candidate to determine the patient-specific SAR deposition during an MRI scan.

Original languageEnglish
Title of host publicationProceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013
Pages668-671
Number of pages4
DOIs
Publication statusPublished - 2013
Event2013 15th International Conference on Electromagnetics in Advanced Applications, ICEAA 2013 - Turin, Italy
Duration: 9 Sept 201313 Sept 2013

Publication series

NameProceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013

Conference

Conference2013 15th International Conference on Electromagnetics in Advanced Applications, ICEAA 2013
Country/TerritoryItaly
CityTurin
Period9/09/1313/09/13

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