Abstract #2132

A 7T head coil with 16-channel dual-row transmit and 32-channel receive array for pTx applications and high SNR

Shajan Gunamony¹, Jens Hoffmann¹, Gregor Adriany², Kamil Ugurbil², and Klaus Scheffler¹

¹Max Planck Institute for Biological Cybernetics, Tuebingen, Germany, ²Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States

Transmit elements arranged in multiple rows are beneficial in extending longitudinal coverage and achieve whole brain excitation at ultra-high field strengths. Furthermore, studies have shown that dual-row arrays produce less local SAR. Receive arrays shaped to the contours of the anatomy improves the signal-to-noise ratio (SNR) of the image. In this work, we develop a 2x8 transmit array for spin excitation in combination with a 32-channel high sensitive receive array for human brain imaging at 7T. Critical coil performance parameters like transmit efficiency and SNR were evaluated.

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