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Table 1: MR imaging parameters for brain and spinal cord image acquisition for all of the participants
MRI Parameters Brain Spinal Cord
Axial 3D SWAN Axial 3D FSPGR Axial T2*GRE Sagittal 3D Volumetric GRE Coronal T2 Axial T2
TE (ms) 50 Minimum 645 Minimum 120 110
TR (ms) 78.3 – 25 – 3700 5934
Flip angle 15° 12° 15° 45° – –
Bandwidth (kHz) 41.67 31.25 31.25 50 41 31.25
FOV (cm) 20 20 24 30 25 18
Section thickness (mm) 3 2 5 0.8 4.5 4
Spacing (mm) – – 0.5 – 0.5 1
Frequency (Hz) 288 256 288 320 384 320
Phase 224 256 192 320 224 224
NEX – 1 1 1 1 3
Frequency direction AP AP AP AP R-L AP
Note:—AP indicates anteroposterior; R-L, right-left; FSPGR, fast-spoiled gradient recalled; SWAN, susceptibility-weighted angiography.

MRI Parameters	Brain			Spinal Cord
MRI Parameters	Axial 3D SWAN	Axial 3D FSPGR	Axial T2*GRE	Sagittal 3D Volumetric GRE	Coronal T2	Axial T2
TE (ms)	50	Minimum	645	Minimum	120	110
TR (ms)	78.3	–	25	–	3700	5934
Flip angle	15°	12°	15°	45°	–	–
Bandwidth (kHz)	41.67	31.25	31.25	50	41	31.25
FOV (cm)	20	20	24	30	25	18
Section thickness (mm)	3	2	5	0.8	4.5	4
Spacing (mm)	–	–	0.5	–	0.5	1
Frequency (Hz)	288	256	288	320	384	320
Phase	224	256	192	320	224	224
NEX	–	1	1	1	1	3
Frequency direction	AP	AP	AP	AP	R-L	AP