A Statistical Robust Approach to Design Parallel Transmit Radiofrequency Excitations in MRI

Figure 6

Mean value (a, b) and (c) CV of the flip angle for , UP, SRD-UP, and CP. For each pulse, the minimum, the maximum, the 75%, and the 50% quantiles of the flip angle mean and CV values are represented. For better readability, due to the large variability in the mean flip angle for the CP mode, the corresponding bar plot was displayed in a separate graph (b). Note that returns by definition an unbiased flip angle (hence the absence of box for this nonrealizable pulse).

(a)

(b)

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