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Table 1 Imaging parameters of volumetric sequences.

From: Parallel imaging: is GRAPPA a useful acquisition tool for MR imaging intended for volumetric brain analysis?

Sequence name MPRAGE MPRAGE SPACE
Orientation Sagittal Sagittal Sagittal
TR (ms) 2400 2400 3200
TE (ms) 3.44 3.44 434
TI (ms) 1000 1000 -
Flip angle (degrees) 8 8 Variable T2W
Slice width (mm) 1.3 1.3 1.3
No. Slices per slab 128 128 128
Slice separation (%) 50 50  
TF - - 107
Matrix (PE, FE) 192 × 192 192 × 192 192 × 192
FOV (mm) 250 250 250
Phase encoding direction Anterior-posterior Anterior-posterior Anterior-posterior
Bandwidth (Hz/Px) 150 150 704
iPAT 2 4 2
Total scan time (min:s) 4:21 2:40 3:22
  1. The key imaging parameters are shown for the MPRAGE with iPAT acceleration factors 2 and 4 as well as the SPACE sequence.