Experimental Implementation of Array-compressed Parallel Transmission at 7T
Zhipeng Cao1,2, Xinqiang Yan1,3, and William A. Grissom1,2,3
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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