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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: J Magn Reson. 2015 Dec 12;262:33–41. doi: 10.1016/j.jmr.2015.12.002

Figure 6.

Figure 6

Performances of three OC pulses optimized under different ranges of the RF scale factors. Box plots of the signal intensities are drawn for the individual ROIs: (a) artery, (b) patella cartilage, (c) lateral femoro-tibial cartilage, (d) medial femoro-tibial cartilage, (e) lateral femoral condyle cartilage, and (f) medial femoral condyle cartilage. The indices on the x axes indicate the MRI pulse sequences used: ‘90°’ for 23Na MRI without fluid suppression; ‘WURST’ for fluid-suppressed 23Na MRI performed with the WURST pulse; ‘0.8’, ‘0.7’, and ’0.6’ for fluid-suppressed 23Na MRI performed with the OC pulses optimized respectively for the RF scale factors from 0.8 to 1.2, from 0.7 to 1.2, and from 0.6 to 1.2. The p values from one-way ANOVA, performed on the distributions of the signal intensities acquired with the three OC pulses, are displayed.