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Table 1: 
Scan parameters of the acquired scan variants
T1WI VISTAd Variant 1PDW VISTA Variant 2aT1WI VIRTAd Variant 3bT1WI VIRTA Variant 4T1WI VISTA Variant 5cT1WI VISTA Variant 6T1WI VIRTA Variant 7
Scan duration (min)8:247:506:426:015:525:494:39
TR/TE (ms)1500/382000/401500/371500/401500/401500/381500/40
FOV (mm3)200 × 166 × 45200 × 166 × 45200 × 166 × 45200 × 166 × 45200 × 166 × 45200 × 166 × 45200 × 166 × 45
Acquired voxel (mm3)0.5 × 0.5 × 0.50.5 × 0.5 × 0.50.6 × 0.6 × 1.00.5 × 0.5 × 1.00.5 × 0.5 × 0.50.6 × 0.6 × 0.60.5 × 0.5 × 1.0
Reconstructed voxel (mm3)0.5 × 0.5 × 0.50.5 × 0.5 × 0.50.5 × 0.5 × 0.50.5 × 0.5 × 0.50.5 × 0.5 × 0.50.6 × 0.6 × 0.60.5 × 0.5 × 0.5
Oversample factor1.81.21.81.81.21.81.8
SENSE reduction factor1.521.5221.52
Overcontiguous slicesNo (90)No (90)Yes (90)Yes (90)No (90)No (75)Yes (90)
TSE + startup echoes56 + 360 + 556 + 556 + 560 + 556 + 456 + 5
Turbo directionRadialRadialY-axisRadialRadialRadialRadial
Refocusing control (αmin/αmax)30/12050/12025/12050/12050/12030/12050/120
Readout bandwidth (Hz)607.6358.6732.1360.1358.6753360.1
Reference tissue T1/T2 (ms)1200/801200/1001200/1001200/1001200/1001200/801200/100
Anti-DRIVEYesNoYesNoNoYesYes
Elliptic k-space shutterYesYesNoNoYesYesYes
  • Note:—αmin/αmax indicates α minimum and maximum; PDW, proton density–weighted; Anti-DRIVE, anti-driven equilibrium.
  • ↵a Adjusted from Qiao et al.19
  • ↵b Currently used in our clinic.
  • ↵c Adjusted from Qiao et al19 with a shorter TR.
  • ↵d Philips Healthcare.