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Abstract #1446

Simulation comparison of 28 different 31P arrays for cardiac MR spectroscopy at 7 T

Sigrun Goluch-Roat1, Martin Vit1,2,3, Albrecht Ingo Schmid1, and Elmar Laistler1

1Division MR Physics, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria, 2TUL (Technical University of Liberec), Liberec, Czech Republic, 3IKEM (Institute for Clinical and Experimental Medicine), Praha, Czech Republic

31P-MR spectroscopy measures cardiac energetics in vivo directly by means of ATP and PCr, but is limited due to low SNR due to the low MR sensitivity of the 31P nucleus and limitation by the achievable B1+. Comprehensive RF coil design considerations and planning help fully exploit the SNR gain by increase of B0. In this simulation study we compare 28 different 31P 7T RF coil array designs with respect to their transmit field performance and obtain a 3-channel array as the best variant.

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