Abstract #3856

A Fast Algorithm to Optimize Transmit Efficiency for Local Excitation with a Transmit Array

Giuseppe Carluccio¹, Christopher Michael Collins², Danilo Erricolo¹

¹Electrical & Computer Engineering, University of Illinois at Chicago, Chicago, IL, United States; ²Radiology & Bioengineering, Pennsylvania State University at Hershey, Hershey, PA, United States

We present a fast algorithm to optimize the transmitted field in a localized region with a transmit array at high B1+ field strengths. With knowledge of the B1 field distribution generated by each single coil of the array, we suggest a fast way to set the phase of each coil current to provide the maximum constructive interference in a localized region, and the amplitude of each coil current to increase the magnitude of the B1+ field and to minimize the power generated by the array.