FIGURE 2.

NRMSE of the $B_1^{\mathit{rms}}$ for 2D middle axial slice (A) and 3D (B) volume, comparing CP mode with optimized PUSH solutions using one, two, and three sub‐pulses (curves for two and three sub‐pulses are superimposed due to nearly identical performance). The gray area represents $\beta$ where CP mode reached the local SAR limits and its voltage capped