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. Author manuscript; available in PMC: 2009 Apr 6.
Published in final edited form as: IEEE Trans Med Imaging. 2008 Sep;27(9):1213–1229. doi: 10.1109/TMI.2008.920605

Fig. 7.

Fig. 7

Bloch-simulated spoke placement comparisons for forming the dual-vein target on the eight-channel parallel excitation system at 3 T. Error and voltage statistics versus number of spokes (T) are shown for the Fourier, inversion, and sparsity-enforced placement methods. Upper-left: RMSE versus T. Lower-left: maximum error versus T. Upper-right: max VRMS across all eight channels versus T. Lower-right: max Vpeak across all eight channels versus T. For all algorithms, the duration of a T-spoke pulse is close to 0.47T + 0.65 ms.