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Table 2 MR imaging parameters

From: Signal and morphological changes in the endolymph of patients with vestibular schwannoma on non-contrast 3D FLAIR at 3 Tesla

  Heavily T2W 3D FLAIR (PPI) Heavily T2W 3D IR (PEI) MR cisternography (MRC) T2W imaging
TR/TE (ms) 9000/542 9000/542 4400/542 1300/123
Inversion time (ms) 2250 2050  −   − 
Frequency-selective fat suppression prepulse  +   +   +   − 
Flip angle Average flip angle 120° followed by 90° restore pulse Average flip angle 120° followed by 90° restore pulse Average flip angle 120° followed by 90° restore pulse Average flip angle 120° followed by 90° restore pulse
Echo train length 519 519 519 87
Acquisition matrix size 324 × 384 324 × 384 324 × 384 320 × 320
FOV (mm2) 166 × 196 166 × 196 166 × 196 200 × 200
Axial slices 104 104 104 160
In-plane resolution (mm) 0.5 × 0.5 0.5 × 0.5 0.5 × 0.5 0.3 × 0.3 (after zero-fill interpolation)
Slice thickness (mm) 1.0 1.0 1.0 0.3
Bandwidth (Hz/pixel) 434 434 434 446
Acceleration factor 2 using GRAPPA (in-plane right-left phase-encoding direction) 2 using GRAPPA (in-plane right-left phase-encoding direction) 2 using GRAPPA (in-plane right-left phase-encoding direction) 2 using GRAPPA (in-plane right-left phase-encoding direction)
Number of excitations 2 2 1.8 2
Phase partial Fourier acquisition  +   +   +   + 
Slice partial Fourier acquisition  −   −   −   + 
Total time (min.sec) 7.17 7.17 3.15 6.27