TY - JOUR
T1 - 3-D Contrast Source Inversion-Electrical Properties Tomography
AU - Leijsen, Reijer L.
AU - Brink, Wyger M.
AU - Van Den Berg, Cornelis A.T.
AU - Webb, Andrew G.
AU - Remis, Rob F.
N1 - Funding Information:
Manuscript received January 29, 2018; revised March 8, 2018; accepted March 9, 2018. Date of publication May 18, 2018; date of current version August 30, 2018. This work was supported by the European Research Council Advanced NOMA MRI under Grant 670629. (Corresponding author: Reijer L. Leijsen.) R. L. Leijsen, W. M. Brink, and A. G. Webb are with the Department of Radiology, C. J. Gorter Center for High Field MRI, Leiden University Medical Center, 2333ZA Leiden, The Netherlands (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 2018 IEEE.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018/9/1
Y1 - 2018/9/1
N2 - Contrast source inversion-electrical properties tomography (CSI-EPT) is an iterative reconstruction method to retrieve the electrical properties (EPs) of tissues from magnetic resonance data. The method is based on integral representations of the electromagnetic field and has been shown to allow EP reconstructions of small structures as well as tissue boundaries with compelling accuracy. However, to date, the CSI-EPT has been implemented for 2-D configurations only, which limits its applicability. In this paper, a full 3-D extension of the CSI-EPT method is presented, to enable CSI-EPT to be applied to realistic 3-D scenarios. Here, we demonstrate a proof-of-principle of 3-D CSI-EPT and present the reconstructions of a 3-D abdominal body section and a 3-D head model using different settings of the transmit coil. Numerical results show that the full 3-D approach yields accurate reconstructions of the EPs, even at tissue boundaries and is most accurate in regions where the absolute value of the electric field is highest.
AB - Contrast source inversion-electrical properties tomography (CSI-EPT) is an iterative reconstruction method to retrieve the electrical properties (EPs) of tissues from magnetic resonance data. The method is based on integral representations of the electromagnetic field and has been shown to allow EP reconstructions of small structures as well as tissue boundaries with compelling accuracy. However, to date, the CSI-EPT has been implemented for 2-D configurations only, which limits its applicability. In this paper, a full 3-D extension of the CSI-EPT method is presented, to enable CSI-EPT to be applied to realistic 3-D scenarios. Here, we demonstrate a proof-of-principle of 3-D CSI-EPT and present the reconstructions of a 3-D abdominal body section and a 3-D head model using different settings of the transmit coil. Numerical results show that the full 3-D approach yields accurate reconstructions of the EPs, even at tissue boundaries and is most accurate in regions where the absolute value of the electric field is highest.
KW - Electrical properties tomography
KW - electromagnetic Green's tensor field representations
KW - magnetic resonance imaging
KW - three-dimensional contrast source inversion
UR - http://www.scopus.com/inward/record.url?scp=85047191857&partnerID=8YFLogxK
U2 - 10.1109/TMI.2018.2816125
DO - 10.1109/TMI.2018.2816125
M3 - Article
AN - SCOPUS:85047191857
SN - 0278-0062
VL - 37
SP - 2080
EP - 2089
JO - IEEE Transactions on Medical Imaging
JF - IEEE Transactions on Medical Imaging
IS - 9
M1 - 8361049
ER -