A quasi-static analysis for a class of induced-current EIT systems using discrete coils
Koksal, A.; Eyuboglu, M.; Demirbilek, M.
Medical Imaging, IEEE Transactions on
Volume 21, Issue 6, June 2002 Page(s):688 - 694
Digital Object Identifier   10.1109/TMI.2002.800603
Summary:A discrete coil EIT system is investigated for the general case of an eccentric circular inhomogeneity. The solution methodology of the forward problem of this system is explained. An optimization procedure using this forward problem solution is developed to find optimum currents that maximize the distinguishability. For an eccentric inhomogeneity problem, it is shown that the coil currents can be optimized to focus the current density in a region of interest. Optimum coil currents under limited peak coil currents constraint and limited total power constraint are obtained. Representative examples that demonstrate the performance of the system are presented.

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