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Abstract #3310

A Dedicated Transceiver 8Tx/16Rx pTx Coil Array for Ex-vivo MRI Histology of Post-infarction Myocardium on a Whole-body 7T Scanner

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


The purpose of this work was to develop and investigate a dedicated transceiver 16-element antisymmetric loop array for high-resolution imaging of the ex-vivo porcine heart at 7T. The array was interfaced to a 7T scanner in parallel transmit (pTx) mode (8Tx/16Rx). Electromagnetic-field (EMF) simulations were performed with the antisymmetric array loaded with a spherical phantom and a human heart (Billie). The optimization of the B1+-shimming for both sTx and pTx applications was performed using simulated and experimental B1-maps. The array was successfully tested to acquire ultra-high resolution (0.1x0.1x0.8mm voxel) images of the post-infarction scar tissue in the excised pig heart.

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