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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Magn Reson Med. 2011 Dec 8;68(3):680–689. doi: 10.1002/mrm.23267

Figure 4.

Figure 4

Bloch equation simulations of (a) 20 ms HS pulse with bandwidth of 1 kHz. (b) Off-resonance profile for T2 = 100 ms, T1 = 1 s. The HS pulse is shifted 270 Hz towards the lipid peak to cover both fat and water peaks. The solid line was calculated at the desired B1 amplitude. The dashed and dotted lines correspond to 70% and 130% of the desired amplitude, respectively. For B1 variations of up to 30% the frequency profile of the HS pulse changes negligibly. (c) On-resonance T2 profile: less than 5% longitudinal magnetization remains for protons with T2 ≤ 1 ms upon application of the HS adiabatic pulse.