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Abstract #2997

Design of Large-Flip-Angle Half Pulses

Pauly J
Stanford University

Slice selective RF half pulses allow imaging of very short T2 components on conventional scanners. Half pulses designed using a Fourier transform work well at small flip angles, but degrade at 90 degrees. Here we show that high performance 90 degree half pulses can be designed using the Shinnary-Le Roux algorithm to design a slice selective 180 degree pulse, and then using the first half as a slice selective 90 degree half pulse.