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Abstract #4056

Development and Evaluation of a pTx Transceiver Cardiac Array Based on Y-Shape Central 3-Loop Arrangement for Cardiac MRI in Pigs at 7T

Ibrahim A. Elabyad1, M. Terekhov1, D. Lohr1, and Laura M. Schreiber1
1Chair of Cellular and Molecular Imaging, Comprehensive Heart Failure Center (CHFC), University Hospital Wuerzburg, Wuerzburg, Germany

An 8-element anterior array based on central 3-elements Y-shape arrangement was combined with a rectilinear 8-elements posterior array to form a dedicated 8Tx/16Rx pTx transceiver cardiac array for pigs was developed. The hardware and imaging performance of the pig array was validated through EM-simulations, phantom and ex-vivo MR-measurements at 7T. Combined SNR, FA, g-factor maps, and high-resolution ex-vivo cardiac images were acquired with an in-plane resolution of 0.3mm×0.3mm. A SNR of 36±23 was achieved within the heart of the pig. Parallel imaging with acceleration factor (R=4) was possible while keeping the mean g-factor within the heart region at 1.14.

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