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Abstract #0180

Development of Two Antisymmetric 16-Element Transceiver Coil Arrays for Parallel Transmit Cardiac MRI in Humans at 7T

Ibrahim A. Elabyad1, Maxim Terekhov1, and Laura M. Schreiber1
1Chair of Molecular and Cellular Imaging, Comprehensive Heart Failure Center (CHFC), University Hospital Wuerzburg, Wuerzburg, Germany

Two antisymmetric, 16-elements, transceiver RF-coil arrays were developed for improved $$${B_1^+}$$$-shimming and parallel imaging for cardiac-MRI in humans at 7T. The first array (Design1) comprised of an 8-loops for both anterior and posterior sections. The second array (Design2) was composed of 12-loops for the anterior section and 4-loops for the posterior section. Electromagnetic-field (EMF) simulations were carried out for both arrays loaded with an elliptical phantom and two human models (Duke and Ella). Static-phase $$${B_1^+}$$$-shimming has been carried out for both arrays with two different optimization cost functions to maximize the transmit-efficiency and weighted combination of $$${B_1^+}$$$-field homogeneity and transmit-efficiency.

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