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Table 1:

MR sequence parameters

Sequence Parameter1.5T7T
TR (ms)2520.0
TE (ms)352.5/15.0
Flip angle (°)1016–24 (variation over slab)
Bandwidth (Hz/pixel)100203
Matrix size276 × 226508 × 399
Parallel imagingYes (acceleration factor = 1.8)Yes (acceleration factor = 2.5)
Flow compensationNoYes
Section thickness (mm)0.80.6
Gap (mm)NoneNone
No. of sections125167
Acquired voxel size (mm)0.8 × 0.8 × 0.80.35 × 0.4 × 0.6
Interpolated voxel size (mm)0.43 × 0.43 × 0.40.35 × 0.35 × 0.3
Acquisition time6 min 56 s8 min 50 s