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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Magn Reson Med. 2015 Jul 3;75(6):2493–2504. doi: 10.1002/mrm.25820

Fig. 4.

Fig. 4

a: Spiral pulse played on eight Tx channels (reference pulse is in blue, the pulse actually played in red). A zoom-in detail of channels 4 and 7 is displayed to better visualize the differences. b: Difference between the desired and played RF amplitude as a function of the desired RF amplitude (linear correlation coefficient equal to 0.44). c: Histogram of the RF amplitude errors (SD = 6.5%) d: Difference between the desired and played RF phase as a function of the desired RF amplitude. e: Histogram of the RF phase errors (SD = 4.4°). In c and e, the 50th, 90th, and 95th percentiles are indicated with vertical lines.