Iterative spectral-spatial pulse design: Toward full use of design freedom
Noll D, Fessler J, Lee S, Yip C
University of Michigan
We propose an iterative spectral-spatial pulse design method that exploits the complex nature of an RF pulse, and the fact that usually only a very selective set of frequency bands are of design interest. For fat suppression, a true null at the fat frequency can be created even with a relatively slow gradient oscillation (at the fat off-resonance frequency). It allows robust fat suppression with fine slice selection, and is potentially beneficial in high fields, in which the fat-water spectral separation is wide.