Comparison of Phase Estimation Methods for Quantitative Susceptibility Mapping Using a Rotating-Tube Phantom

Table 1

All data acquisition parameters.

Sequence	Scan ID	TR (ms)	Echo times (ms)	Bandwidth (Hz)	Alpha (deg)	Resolution (mm^3)	Acquisition time (min:s)
Single-echo GRE (SEGE)	1	25	16	80	15	1.0 × 1.0 × 2.0	1 : 59
	2	35	25.7	80	15	0.5 × 0.5 × 2.0	4 : 35
	3	45	30	80	15	1.0 × 1.0 × 2.0	3 : 35
Multiecho GRE (MEGE)	1	25	2.5, 6.2, 9.9, 13.6, 17.3, 21.0	500	15	1.0 × 1.0 × 2.0	1 : 59
	2	35	3, 7.8, 12.6, 17.4, 22.2, 27.0	530	15	0.5 × 0.5 × 2.0	4 : 35
	3	45	2.5, 6.2, 9.9, 13.6, 17.3, 21.0, 24.7, 28.4, 32.1, 35.7, 39.5	500	15	1.0 × 1.0 × 2.0	3 : 35
sEPI	1	72	27, ETL = 15	430	20	1.0 × 1.0 × 2.0	0 : 31
	2	72	27, ETL = 15	430	20	0.5 × 0.5 × 2.0	0 : 52
MAGPI	1	25	4.1, 8.9, 12.6, 16.3, 20.0	190	15	1.0 × 1.0 × 2.0	1 : 59
	2	35	7.6, 13.0, 17.3, 21.5, 25.7, 30.0	250	15	0.5 × 0.5 × 2.0	4 : 35
	3	45	6.6, 13.0, 18.5, 23.8, 29.0, 34.2, 39.4	200	15	1.0 × 1.0 × 2.0	3 : 35