Table 1.

Scanning parameters and time of the sequences acquired using PI and ACS

	PI	ACS 4.37	ACS 6.22	ACS 9.03
TR(ms)	2500	2500	2500	2500
TI(ms)	300	300	300	300
TE(ms)	354.48	354.48	354.48	354.48
Voxel(mm)	1.0 × 1.0 × 1.0	1.0 × 1.0 × 1.0	1.0 × 1.0 × 1.0	1.0 × 1.0 × 1.0
Interpolation	1.5	1.5	1.5	1.5
FOV(mm)	400 × 352	400 × 352	400 × 352	400 × 352
Acquisition matrix	352 × 352	352 × 352	352 × 352	352 × 352
BW(Hz/pixel)	500	500	500	500
ETL	184	184	184	184
NEX	2	2	2	2
Slices	90	90	90	90
Acceleration factor	2.91	4.37	6.22	9.03
Scanning time(min:s)	5:52	3:47	2:38	1:48

TR repetition time, TI inversion time, TE echo time, FOV field of view, BW band-width, ETL Echo train length, NEX Number of Excitation