Array-compressed parallel transmit pulse design with optimized coil-channel assignments and coil pruning for simultaneous multislice and 3D reduced-field-of-view excitations
Zhipeng Cao1,2, Xinqiang Yan1,3, and William A. Grissom1,2,3
1Vanderbilt University Insitute of Imaging Science, Vanderbilt University, Nashville, TN, United States, 2Biomedical Engineering, Vanderbilt University, Nashville, TN, United States, 3Radiology, Vanderbilt University, Nashville, TN, United States
An improved array-compressed parallel transmit pulse design is proposed and validated to optimally connect transmit arrays with a large number of elements to a few transmit channels. It is further demonstrated to achieve better performance with array-compressed coil designs than conventional designs for multiband RF shimming for human brain imaging and 3D spatially selective excitation for human occipital lobe imaging.
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