Abstract #2154

Experimental Implementation of Array-compressed Parallel Transmission at 7T

Zhipeng Cao^1,2, Xinqiang Yan^1,3, and William A. Grissom^1,2,3

¹Vanderbilt University Institue of Imaging Science, Vanderbilt University, Nashville, TN, United States, ²Biomedical Engineering, Vanderbilt University, Nashville, TN, United States, ³Radiology, Vanderbilt University, Nashville, TN, United States

With a constructed 8 channel transmit array and a tunable 2 channel-to-8 coil compression matrix, the array-compressed parallel transmit pulse design is demonstrated on 7T MRI through B1+ mapping and accelerated spiral excitation. Results showed more accurate excitation pattern can be achieved with the compression matrix hardware and compressed parallel transmit pulses than two-channel CP-mode pulses.

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