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Abstract #4922

Improved SNR/g Using Small FOV Spatially Selective Pulses with Parallel Excitation

Mike J. Smith1, Scott B. King1, Matthew Sodomsky1, Peter Latta1, Jarod Matwiy1, Ulrich Fontius2, Franz Schmitt2, Boguslaw Tomanek1

1National Research Council, Winnipeg, Manitoba, Canada; 2Siemens Medical Solutions, Erlangen, Germany

Transmit array systems generate improved spatially selective excitation profiles while mitigating RF power disposition. We used our 3T Siemens 8-channel transmit system for small FOV excitation to improve parallel imaging SNR when the sample exceeds the ROI. We ensure that excitation artifact signals are below the image noise level, making the g-factor maps ideal (unity) and effective reduction factors greater than what would typically be used for a particular array become possible.