Sensitivity of 3-D CSI-EPT Reconstructions to Modelled EM Field Variations and Object Truncation
Reijer Leijsen (Leiden University Medical Center)
W.M.. Brink (Leiden University Medical Center)
R. F. Remis (TU Delft - Signal Processing Systems)
Andrew Webb (TU Delft - Signal Processing Systems, Leiden University Medical Center)
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Abstract
Model-based electrical properties tomography (EPT; [1,2]) reconstruction with 3-D Contrast Source Inversion-EPT (CSI-EPT; [3,4]) has high potential, but is inherently sensitive to small errors in the model used. Here we assess its sensitivity to errors in the incident electromagnetic (EM) fields due to coupling of the coil to the sample (loading effect), errors in the total EM fields due to errors in mapping methods, and the effect of different object truncations.