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Table 1: Summary of sequence parameters of the 6 MR units used
Equipment Coil Type Field Strength, T Gd-Enhanced T1-Weighted Sequence T2-Weighted Sequence
Sequence Type Section Thickness, mm In-Plane Resolution, mm × mm Sequence Type Section Thickness, mm In-Plane Resolution, mm × mm
Siemens Magnetom Birdcage head 1 SE 3 0.80 × 0.80 3D CISS 0.7 0.65 × 0.65
Siemens Magnetom Vision Birdcage head 1.5 SE 2 0.90 × 0.90 3D CISS 0.7 0.37 × 0.37
Siemens Avanto Surface coils 1.5 MPRAGE 1 0.45 × 0.45 3D-TSE 0.5 0.53 × 0.53
GE Signa Surface coils 1.5 FSE 2 0.35 × 0.35 3D-FSE 0.8 0.39 × 0.39
Philips Intera Surface coils 1.5 3D-FFE 1.2 every 0.6 0.70 × 0.70 DRIVE^25,26 0.7 every 0.35 0.36 × 0.36
Philips Achieva Surface coils 3 3D-FFE 1.2 every 0.6 0.60 × 0.60 DRIVE 0.6 every 0.3 0.43 × 0.43
Note:—SE indicates spin-echo; MPRAGE, magnetization-prepared rapid acquisition of gradient echo; FFE, fast-field echo; CISS, constructive interference in steady state; TSE, turbo spin-echo; FSE, fast spin-echo; DRIVE, driven equilibrium; Gd, gadolinium.