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Abstract #1887

Reduction of RF Pulse Duration using Dephased Transition

Seohee So1, HyunWook Park1, Dongchan Kim1, Hyunseok Seo1, JaeJin Cho1, Young Woo Park1, and Kinam Kwon1

1Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of

Slice profile used for magnetic resonance (MR) imaging has transition region between passband and stopband. Sharper transition performs better slice selection. This abstract proposes method to design short-duration RF pulse without increasing transition region width. Additional phase is merged into a transition region of slice profile. Two RF pulses having different phases are used alternately. The proposed algorithm produces about 30% reduction of RF pulse duration without transition increase.

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