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Table 1: 3D Noncontrast protocol
Name 3D TOF 3D MPRAGE 3D T1WI SPACE/Cube/VISTA 3D T2WI SPACE/Cube/VISTA
Plaque feature Stenosis, ulceration, calcification Intraplaque hemorrhage Plaque burden and distribution LRNC
Sequence^{^a} FFE/SPGR IR-TFE/SPGR TSE/FSE TSE/FSE
Image mode 3D 3D 3D 3D
Scan plane Axial Coronal Coronal Coronal
TR (ms) 24 15 1000 2500
TE (ms) 4.6 Minimum 30 250
FOV (cm) 16 × 16 16 × 16 16 × 16 16 × 16
Resolution (mm²) 0.6 × 0.6 0.6 × 0.6 0.6 × 0.6 0.6 × 0.6
Slice thickness (mm) 1^{^b} 0.6 0.6 0.6
Blood suppression Saturation–veins None MSDE/FSD^{^c} MSDE/FSD
Special parameters Flip angle = 20° Flip angle = 15° Echo-train: variable Echo-train: variable
TI = 500 ms VFA T1 VFA T2
Turbo factor = 30, IRTR = 800 ms 
Fat suppression No Yes (water excitation) Yes Yes
Note:—SPGR indicates echo-spoiled gradient-echo; FFE, fast-field echo; IR-TFE, inversion recovery–turbo field echo; VFA, variable flip angle; IRTR, time interval between 2 consecutive IR pulses; MSDE, motion-sensitized driven equilibrium; FSD, flow-sensitized dephasing.
↵a Siemens/Philips/GE acronyms.
↵b Interpolated resolution.
↵c Pulse gating not required for any sequence.