2D RF spoiled gradient echo sequence. TR = 6 ms, TE= 2.2 ms, FA = 30°. The image matrix is 256×256.

      subvoxel = 1×1×4  (10.7 s)                   subvoxel = 2×1×4 (21.0 s)

         subvoxel = 4×1×4 (41.7 s)               subvoxel = 8×1×4 (105.6 s)