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Abstract #3191

An Inverse Approach to MR-EPT Reconstruction

Andrea Borsic 1 , Irina Perreard 2 , and Ryan J Halter 1

1 Thayer School of Engineering, Dartmouth College, Hanover, NH, United States, 2 Radiology Department, Dartmouth College, Hanover, NH, United States

This manuscript presents a novel approach to the reconstruction of the electrical properties of tissues from MRI B1 field information. While other approaches require differentiation of B1 phase or amplitude information, an inverse problem approach is proposed, where conductivity / permittivity are estimated by matching a simulated B1 phase / amplitude to measured ones. Through this formulation it is possible to reduce sensitivity to noise typical of differentiation processes and to deal better with sharp image transitions.

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