Abstract #2072

High Resolution Imaging of the Ex-Vivo Porcine Heart at 7T Using a Dedicated Custom Built 8TX/16RX Array: Quality Assessment

David Lohr¹, Maxim Terekhov¹, Ibrahim A. Elabyad¹, Franziska Veit², and Laura Maria Schreiber¹

¹Chair of Cellular and Molecular Imaging, Comprehensive Heart Failure Center (CHFC), University Hospital Würzburg, Würzburg, Germany, ²Chair Tissue Engineering and Regenerative Medicine (TERM), University Hospital Würzburg, Würzburg, Germany

MRI measurements of ex-vivo hearts at ultrahigh field strengths (≥7T) can provide high resolution, high fidelity ground truth data that complement clinical cardiac MRI. In this study we demonstrate ex-vivo sample preparation steps and capabilities of a custom built, multiple element transceiver array dedicated to high resolution imaging of ex-vivo hearts. Measurements included whole heart data for T₂^* maps, a high resolution 3D FLASH, as well as high resolution DTI. We found that receive sensitivity of the dedicated coil was superior to a commercial head coil and that SNR was similar, even without the application of B₁-shim.

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