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. Author manuscript; available in PMC: 2020 Feb 24.
Published in final edited form as: Top Magn Reson Imaging. 2019 Jun;28(3):159–171. doi: 10.1097/RMR.0000000000000204

FIGURE 1.

FIGURE 1.

Flip angle homogeneity comparison between single-channel excitation and 8-channel pTx for SMS brain imaging at 7T. Flip angle maps are shown in degrees using 5 gapped axial slices, with the number reported being the coefficient of variation (ie, std/mean) of the flip angles across the whole brain. pTx substantially improved flip angle homogeneities across the whole brain, with the coefficient of variation being reduced on average by 39%. Reprinted with permission from Neuroimage 2019; 184:396–408.