Table 1:

Sequence parameters for DWI, T1WI, T2*WI, FLAIR, and 3D multiecho spoiled GRE sequencea

DWIT2WIFLAIRT2*WI3D Multiecho Spoiled GRE (SWI)
TR (ms)6000400012,00080058.4
Effective TE (ms)608514017No. of TEsb
Bandwidth (Hz per pixel)19531639831±62.5
Flip angle90°90°90°30°15°
Section thickness (mm)55552
Matrix size128 × 192512 × 512256 × 224320 × 192320 × 416
FOV (mm)22 × 2222 × 2222 × 2222 × 2222 × 16.5
Acquisition time (min)0.53.33.52.57
NEX12111
Parallel imaging method (reduction factor)22NANA2
  • Note:—NA indicates not available.

  • a B-values of 0 and 1000 via single-shot multislice spin-echo echo-planar imaging for DWI.

  • b Number of echo times, 11; first echo time, 4.5 msec; uniform echo time spacing, 5 msec; repetition time, 58.4 msec.