Fig. 3.
Example of whole brain MP2RAGE of isotropic 1 mm (A-D) and 0.75 mm (E-G) with different TR and acceleration (acc.) factor (Ry × Rz); A1 and A2) TR = 6 s, acc. = 3, scan time = 8:30, B) TR = 5 s, acc. = 3 × 2, scan time = 7:05,C) TR = 4 s, acc. = 3 × 2,scan time = 5:40, D) TR = 3 s, acc. = 3 × 2, scan time = 4:15, E1 and E2) TR = 6 s, acc. = 3, F) TR = 6 s, acc. = 3 × 2,and G) TR = 6 s, acc. = 3 × 3. The scan time of E1,2), F) and G scans is 10:26. A1 and E1 images were reconstructed using GRAPPA algorithm. A2 and E2 were reconstructed using SPIRiT.