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TABLE 2: 
Mean diffusivity and fractional anisotropy histogram-derived metrics, averaged over the eight participants, for each of the three pulsed gradient spin-echo single shot echo-planar imaging sequences run on two different imaging units
Imaging Unit
AB
PGSE SS-EPI 1
 Average MD (SD) [×10−3 mm2/s]0.89 (0.01)0.85 (0.02)
 Mean MD peak height (SD)98.0 (10.5)105.0 (7.7)
 Mean MD peak position (SD) [×10−3 mm2/s]0.76 (0.02)0.74 (0.02)
 Average FA (SD)0.24 (0.011)0.26 (0.003)
 Mean FA peak height (SD)48.9 (4.5)49.8 (1.8)
 Mean FA peak position (SD)0.1 (0.001)0.1 (0.001)
PGSE SS-EPI 2
 Average MD (SD)  [×10−3 mm2/s]0.91 (0.02)0.84 (0.02)
 Mean MD peak height (SD)98.8 (10.5)112.3 (10.0)
 Mean MD peak position (SD) [×10−3 mm2/s]0.76 (0.03)0.72 (0.03)
 Average FA (SD)0.22 (0.009)0.26 (0.006)
 Mean FA peak height (SD)55.2 (4.5)45.7 (3.4)
 Mean FA peak position (SD)0.1 (0.002)0.1 (0.001)
PGSE SS-EPI 3
 Average MD (SD) [×10−3 mm2/s]0.92 (0.02)0.85 (0.02)
 Mean MD peak height (SD)98.1 (11.0)102.3 (10.6)
 Mean MD peak position (SD) [×10−3 mm2/s]0.76 (0.02)0.73 (0.03)
 Average FA (SD)0.22 (0.008)0.24 (0.010)
 Mean FA peak height (SD)57.2 (5.2)50.0 (4.14)
 Mean FA peak position (SD)0.1 (0.001)0.1 (0.001)
  • Note.—PGSE SS-EPI indicates pulsed gradient spin-echo single shot echo-planar imaging; MD, mean diffusivity; FA, fractional anisotropy.