Next Article in Journal
PixelBNN: Augmenting the PixelCNN with Batch Normalization and the Presentation of a Fast Architecture for Retinal Vessel Segmentation
Next Article in Special Issue
Contraction Integral Equation for Three-Dimensional Electromagnetic Inverse Scattering Problems
Previous Article in Journal
Comparative Study on Local Binary Patterns for Mammographic Density and Risk Scoring
Previous Article in Special Issue
Full-Vectorial 3D Microwave Imaging of Sparse Scatterers through a Multi-Task Bayesian Compressive Sensing Approach
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
J. Imaging 2019, 5(2), 25; https://doi.org/10.3390/jimaging5020025

Developments in Electrical-Property Tomography Based on the Contrast-Source Inversion Method

1
Department of Radiology, C.J. Gorter Center for High Field MRI, Leiden University Medical Center, 2333ZA Leiden, The Netherlands
2
Circuits and Systems Group, Delft University of Technology, Faculty of Electrical Engineering, Mathematics and Computes Science, 2628CD Delft, The Netherlands
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 4 December 2018 / Revised: 18 January 2019 / Accepted: 24 January 2019 / Published: 1 February 2019
(This article belongs to the Special Issue Microwave Imaging and Electromagnetic Inverse Scattering Problems)
Full-Text   |   PDF [2340 KB, uploaded 1 February 2019]   |  

Abstract

The main objective of electrical-property tomography (EPT) is to retrieve dielectric tissue parameters from B ^ 1 + data as measured by a magnetic-resonance (MR) scanner. This is a so-called hybrid inverse problem in which data are defined inside the reconstruction domain of interest. In this paper, we discuss recent and new developments in EPT based on the contrast-source inversion (CSI) method. After a short review of the basics of this method, two- and three-dimensional implementations of CSI–EPT are presented along with a very efficient variant of 2D CSI–EPT called first-order induced current EPT (foIC-EPT). Practical implementation issues that arise when applying the method to measured data are addressed as well, and the limitations of a two-dimensional approach are extensively discussed. Tissue-parameter reconstructions of an anatomically correct male head model illustrate the performance of two- and three-dimensional CSI–EPT. We show that 2D implementation only produces reliable reconstructions under very special circumstances, while accurate reconstructions can be obtained with 3D CSI–EPT. View Full-Text
Keywords: electromagnetic inverse scattering problems; magnetic resonance imaging; electrical-property tomography; nonlinear optimization; contrast-source inversion electromagnetic inverse scattering problems; magnetic resonance imaging; electrical-property tomography; nonlinear optimization; contrast-source inversion
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Leijsen, R.; Fuchs, P.; Brink, W.; Webb, A.; Remis, R. Developments in Electrical-Property Tomography Based on the Contrast-Source Inversion Method. J. Imaging 2019, 5, 25.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Imaging EISSN 2313-433X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top