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Fig 4. Fractional anisotropy (FA) and Trace/3 ADC (B) values (mean ± SD) for 3 brain regions in 5 normal subjects using conventional DTI R1-PPF, R1-no PPF, and mSENSE and GRAPPA R = 2 DTI methods. The dashed lines in A indicate FA values obtained with conventional R1-PPF for different structures and help demonstrate the extent of variations with measurements made by using other techniques. Although subtle differences are evident, the values appear to be fairly consistent between parallel imaging and conventional DTI. Values for mSENSE and GRAPPA R = 3, 4 methods are not shown because of the poor quality of the maps. * indicates significant (P < .05) paired differences of R1-PPF versus R1-no PPF, mSENSE R = 2, and GRAPPA R = 2 methods.
