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. Author manuscript; available in PMC: 2010 Jul 21.
Published in final edited form as: Magn Reson Med. 2010 Apr;63(4):1092–1097. doi: 10.1002/mrm.22223

Fig. 2.

Fig. 2

(a) The spatial shift of the spin excitation profiles along the phase encoding direction (along the horizontal) as it varies with the amount of off-resonance (along the vertical) for a 2DRF pulse; (b) A 1D idealized plot of the separation of fat and water excitation profiles which enable both reduced FOV imaging and fat suppression as with the π method; (c) The spatial shift of the spin excitation profiles as in (a) for a 2DRF pulse for spatially varying fat-water excitation; (d) A 1D idealized plot of the separation of fat and water excitation with a 2DRF pulse as in (c) that gives the potential for variable fat-water distributions within the FOV as, for example, can be achieved within FOV1-FOV4. Ws: the stopband width, Wt: the transition width, Wp: the passband width, FOE: the field of excitation, and ΔS: the spatial shift.