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Abstract #0921

GRATER-based RF pulse predistortion improves multiband bSSFP imaging

Vanessa Landes1 and Krishna S. Nayak2

1Biomedical Engineering, University of Southern California, Los Angeles, CA, United States, 2Electrical Engineering, University of Southern California, Los Angeles, CA, United States

We present a hardware-free way to mitigate RF envelope error that has the potential to be extremely fast (<1 min), and to benefit simultaneous multislice (SMS) balanced steady-state free precession (bSSFP) imaging. This approach improves RF waveform fidelity 9-fold in a variety of multiband pulses, and correspondingly reduces bSSFP spurious side-lobe excitation 3-fold. This provides 4-fold reduction in SMS bSSFP side-lobe signal.

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