Iterative sensitivity matrix-based magnetic resonance conductivity tensor imaging

Authors

EVREN DEĞİRMENCİ

DOI

10.3906/elk-1803-6

Abstract

Magnetic resonance conductivity tensor imaging (MRCTI) reconstructs high-resolution anisotropic conductivity images, which are proved to have critical importance in radio-oncological imaging as well as source localization fields. In the MRCTI technique, linearly independent current injections are applied to the region to be imaged and resulting magnetic flux densities are measured using magnetic resonance imaging techniques. In this study, a novel iterative reconstruction algorithm based on a sensitivity matrix approach is proposed and tested using both simulated and experimental measurements. Obtained results show that the proposed technique can reconstruct anisotropic conductivity images with high and position-independent spatial resolution in addition to decreased number of current injection strategies.

Keywords

Magnetic resonance imaging, conductivity tensor, anisotropy, reconstruction

First Page

24

Last Page

36

Recommended Citation

DEĞİRMENCİ, EVREN (2019) "Iterative sensitivity matrix-based magnetic resonance conductivity tensor imaging," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 27: No. 1, Article 3. https://doi.org/10.3906/elk-1803-6
Available at: https://journals.tubitak.gov.tr/elektrik/vol27/iss1/3