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Abstract #0029

Small-tip Fast Recovery (STFR) imaging Using Spectrally Tailored Pulse

Hao Sun 1 , Jeffrey A. Fessler 1 , Douglas C. Noll 2 , and Jon-Fredrik Nielsen 2

1 Electrical Engineering and Computer Science, the University of Michigan, Ann Arbor, MI, United States, 2 Biomedical Engineering, the University of Michigan, Ann Arbor, MI, United States

Small tip fast recovery (STFR) imaging has been proposed recently as a potential alternative to balanced steady state free precession (bSSFP). STFR relies on a tailored tip-up RF pulse to achieve comparable signal level and image contrast as bSSFP, but with reduced banding artifacts. Previous STFR implementations used 2D or 3D pulses spatially tailored to the accumulated phase calculated from a B0 field map. Here we propose to replace the spatially tailored pulse with a spectrally tailored pulse, which can be precomputed to a target frequency range. We show that this spectral-STFR sequence has reduced banding artifacts compared to bSSFP.

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