Effects of Simulated Error-Sources on Different 3-D CSI-EPT Strategies

Leijsen, Reijer L.; Brink, Wyger M.; Webb, A.; Remis, R.F.

doi:10.1109/TCI.2021.3094742

Effects of Simulated Error-Sources on Different 3-D CSI-EPT Strategies

Title

Effects of Simulated Error-Sources on Different 3-D CSI-EPT Strategies

Author

Leijsen, Reijer L. (Leiden University Medical Center)
Brink, Wyger M. (Leiden University Medical Center)
Webb, A. (Leiden University Medical Center)
Remis, R.F. (TU Delft Signal Processing Systems)

Date

2021

Abstract

Three-dimensional contrast source inversion-electrical properties tomography (3-D CSI-EPT) is an iterative reconstruction method that estimates the electrical properties of tissue from transmit field magnetic resonance data. However, in order to bring 3-D CSI-EPT into practice for complex tissue structures and to understand the origin and effect of errors, insight in the sensitivities of reconstruction accuracy to the major error-sources is necessary. In this paper, different strategies for implementing 3-D CSI-EPT, including their iterative structure, are presented, of which the regularized implementation shows the most potential to be used in practice. Moreover, the influence of initialization, noise, stopping criteria, incident fields, B1-maps, transceive phase and domain truncation are discussed. We show that of all these different error-sources, initialization, accurate coil models and domain truncation have the most dramatic effect on electrical properties reconstructions in practice.

Subject

Electrical properties tomography
Magnetic resonance imaging
Three-dimensional contrast source inversion
Total variation regularization

To reference this document use:

http://resolver.tudelft.nl/uuid:f2855f1a-be72-4f9b-a8b6-9b44ce55d1c9

DOI

https://doi.org/10.1109/TCI.2021.3094742

ISSN

2573-0436

Source

IEEE Transactions on Computational Imaging, 7, 713-723

Part of collection

Institutional Repository