Table 1.

Summary of BIG scanning parameters.

Scanning parameter	Variations across subjects
Station Name	avanto (572), sonata (175), trio (56), triotim (657)
Sequence Name	*tfl3d1 (16), *tfl3d1_ns (1101), spc3d1rr282ns (6), tfl3d1 (2), tfl3d1_ns (335)
Slice Thickness	0.8 (2), 0.84 (2), 0.87 (1), 0.91 (1), 1 (1453), 1.1 (1)
Repetition Time	1660 (3), 1960 (16), 2250 (645), 2300 (690), 2730 (100), 3200 (6)
Echo Time	2.02 (3), 2.86 (1), 2.92 (28), 2.94 (1), 2.95 (572), 2.96 (193), 2.99 (15), 3.03 (403), 3.04 (1), 3.08 (1), 3.11 (1), 3.13 (1), 3.55 (2), 3.68 (162), 3.93 (54), 4.01 (6), 4.43 (9), 4.58 (4), 5.59 (3)
Inversion Time	1000 (100), 1100 (704), 750 (3), 850 (645), 900 (2), null (6)
Number Of Averages	1 (1457), 2 (3)
Magnetic Field Strength	1.494 (112), 1.5 (635), 2.89362 (56), 3 (657)
Number Of Phase Encoding Steps	176 (3), 196 (6), 253 (5), 255 (658), 256 (786), 320 (2)
Percent Phase Field Of View	100 (1441), 68.75 (3), 81.25 (16)
Pixel B and width	130 (714), 140 (735), 240 (2), 260 (3), 751 (6)
Transmitting Coil	body (1259), cp_head (53), txrx_head (148)
Acquisition Matrix	[0 256 176 0] (3),[ 0 256 208 0] (16), [0 256 256 0] (1433), [0 256 258 0] (6), [0 320 320 0] (2)
Flip Angle	120 (6), 15 (645), 7 (100), 8 (707), 9 (2)
Pixel Spacing	[0.5 0.5] (17), [0.8 0.8] (2), [1.0 1.0] (1440), [1.1 1.1] (1)
L Accel Fact PE	1 (787), 2 (662), 3 (3), 4 (5), null (3)
tcoil ID/Receiving Coil	32ch_head (281), 8ch_head (667), body (1), cp_head (430), headmatrix (78), null (3)

Note: Each scanning setting is followed by the number of subjects that were scanned using this setting. Scanning parameters with small variations across the subjects (displayed in gray) were excluded from the subsequent analysis.