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Table 1: MR imaging acquisition parameters
Sequence GRE GRE SWI SWI GRE SWI
Field strength (Tesla) 1.5 1.5 1.5 1.5 3.0 3.0
Section thickness (mm) 5 1.5 5 1.3 5 1.2
Gap between sections (mm) 1 0.3 0 0 0 0
In-plane resolution (mm) 0.9 × 0.9 0.7 × 0.7 0.9 × 0.9 0.7 × 0.7 1.15 × 1.15 0.5 × 0.5
Acquisition time (min) 3.5 11 2.5 8.5 2.5 9
TR (ms) 750 763 48 48 750 27
TE (ms) 24 24 40 40 25 21
Flip angle (degrees) 30 30 20 20 15 15
Number of averages 2 2 1 1 2 1
Acquisition matrix 256 × 144 320 × 216 256 × 171 320 × 214 192 × 192 448 × 299
FOV (mm) 230 × 130 224 × 151 230 × 130 224 × 150 221 × 221 224 × 150
Note:—GRE indicates gradient recalled-echo; SWI, susceptibility-weighted imaging.

Sequence	GRE	GRE	SWI	SWI	GRE	SWI
Field strength (Tesla)	1.5	1.5	1.5	1.5	3.0	3.0
Section thickness (mm)	5	1.5	5	1.3	5	1.2
Gap between sections (mm)	1	0.3	0	0	0	0
In-plane resolution (mm)	0.9 × 0.9	0.7 × 0.7	0.9 × 0.9	0.7 × 0.7	1.15 × 1.15	0.5 × 0.5
Acquisition time (min)	3.5	11	2.5	8.5	2.5	9
TR (ms)	750	763	48	48	750	27
TE (ms)	24	24	40	40	25	21
Flip angle (degrees)	30	30	20	20	15	15
Number of averages	2	2	1	1	2	1
Acquisition matrix	256 × 144	320 × 216	256 × 171	320 × 214	192 × 192	448 × 299
FOV (mm)	230 × 130	224 × 151	230 × 130	224 × 150	221 × 221	224 × 150