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Abstract #4950

On the Generation of Half-Sinc Pulses for Optimal Excitation Profile

Keith Wachowicz1, B. Gino Fallone2,3

1Medical Physics, Cross Cancer Institute, Edmonton, Alberta, Canada; 2Medical Physics, Cross Cancer Institute, Canada; 3University of Alberta

In this work, we perform simulations to explore the effects of fast T2 relaxation on excitation with half-sinc pulses. The generation of pulses for optimal excitation profiles is explored in terms of optimal flip angle, for which standard reasoning used for longer T2 species will no longer hold. Also, the number of side lobes to generate an optimal excitation profile was investigated, since, unlike the case of longer T2, using more side-lobes does not necessarily result in a better profile.