TY - JOUR
T1 - Effects of Simulated Error-Sources on Different 3-D CSI-EPT Strategies
AU - Leijsen, Reijer L.
AU - Brink, Wyger M.
AU - Webb, Andrew G.
AU - Remis, Rob F.
N1 - Funding Information:
Manuscript received December 25, 2020; revised April 4, 2021 and May 30, 2021; accepted June 21, 2021. Date of publication July 7, 2021; date of current version July 30, 2021. This work was supported in part by European Research Council Advanced NOMA MRI under Grant 670629. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Ilaria Catapano. (Corresponding author: Reijer L. Leijsen.) Reijer L. Leijsen, Wyger M. Brink, and Andrew G. Webb are with the Department of Radiology, C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, ZA 2333, The Netherlands (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 2015 IEEE.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Electrical properties tomography
KW - Magnetic resonance imaging
KW - Three-dimensional contrast source inversion
KW - Total variation regularization
UR - http://www.scopus.com/inward/record.url?scp=85111958399&partnerID=8YFLogxK
U2 - 10.1109/TCI.2021.3094742
DO - 10.1109/TCI.2021.3094742
M3 - Article
AN - SCOPUS:85111958399
SN - 2573-0436
VL - 7
SP - 713
EP - 723
JO - IEEE Transactions on Computational Imaging
JF - IEEE Transactions on Computational Imaging
M1 - 9477090
ER -