Table 1.

Ratios of SNR and linewidth parameters between the variable spectral quality rosette datasets.

Frontal lobe	NAA	Cr	Ch	LW
slab/whole brain shim	1.01±0.02	1.01±0.02	1.01±0.01	0.88±0.04*
9.6min/6.0min (slab shimmed)	1.18±0.05*	1.18±0.05*	1.15±0.07*	0.97±0.04
9.6min/4.8min (slab shimmed)	1.40±0.08*	1.40±0.10*	1.37±0.10*	0.94±0.03*
Total brain
slab/whole brain shim	0.99±0.01	0.99±0.02	1.00±0.02	0.95±0.05
9.6min/6.0min (slab shimmed)	1.18±0.02*	1.18±0.03*	1.16±0.03*	0.97±0.03
9.6min/4.8min (slab shimmed)	1.32±0.07*	1.31±0.09*	1.30±0.08*	0.96±0.02*

Significance:

^*p<0.05 paired t-test different from 1.0.