Table 1:

MRI acquisition parameters

Sequence TypeSynthetic MRITSE PD-/T2WIFLAIRTSE T1WI3D MPRAGE3D FLAIR
Acquisition planeAxialAxialAxialAxialAxialSagittal
In-plane resolution (mm)0.9 × 0.90.9 × 0.90.9 × 0.90.9 × 0.90.9 × 0.91.0 × 1.0
Sections (No.)30303030160160
Section thickness (mm)4.04.04.04.01.01.0
Distance factor, (%)30303030––
Flip angle120°a120°a130°a120°a9°120°
TR (ms)4260b4120900055019006000
TE (ms)22/100b15/929083.48388
TI (ms)150/580/2000/4130b–2500–9002100
Turbo factor57122––
Generalized partially parallel acquisition factor202022
Bandwidth (Hz/pixel)154250283283180781
No. of averages111211
Acquisition time6:502:383:384:445:157:02

  • ↵a Flip angles denote the flip angles of the echo pulses; excitation flip angles, 90°.

  • ↵b Acquisition parameters. Synthetic images were generated using TRs, TIs, and TEs matching the conventional sequences.