TABLE I.

Image acquisition parameters at 1.5 and 3.0 T. The survey scan and SENSE reference scan were performed first but not included in the table.

Image sequence	1.5 T	3.0 T
Spin echo (ACR axial T1 sequence)	TR/TE = 500/20 msfov = 250 mm, 11 slicesslice thickness = 5 mm, gap = 5 mmacquisition matrix = 256 × 256phase-encoding direction = APbandwidth = 109.3 Hz/pixelNSA = 1SENSE = no	TR/TE = 601/20 msfov = 250 mm, 11 slicesslice thickness = 5 mm, gap = 5 mmacquisition matrix = 256 × 256phase-encoding direction = APbandwidth = 207.8 Hz/pixelNSA = 1SENSE = no
Spin echo DTI with single shot EPI readout (a clinical scan protocol)	TR/TE = 8802/110 ms, b = 1000 s/mm2 Fov = 256 mm, 56 slicesslice thickness = 2 mm, gap = 0 mmacquisition matrix = 128 × 128encoding scheme: Jones30a phase-encoding direction = APfat shift direction = Pbandwidth (phase-encoding direction) = 18.9 Hz/pixelbandwidth (frequency-encoding direction) = 1786.7 Hz/pixelHalfscan factor = 0.806NSA = 1, b = 0 average = 5SENSE reduction (AP) = 2.0clear = yes	TR/TE = 8000/74 ms, b = 1000 s/mm2 Fov = 256 mm, 72 slicesslice thickness = 2 mm, gap = 0 mmreadout acquisition matrix = 128 × 128encoding scheme: Jones30a phase-encoding direction = APfat shift direction = Pbandwidth (phase-encoding direction) = 26.5 Hz/pixelbandwidth (frequency-encoding direction) = 2742.3 Hz/pixelHalfscan factor = 0.889NSA = 1, b = 0 average = 5SENSE reduction (AP) = 2.5clear = yes

^aJones 30 is a gradient-encoding scheme for DTI with 30 encoding directions (see Ref. 13 for details).