Table 5.

Technical characteristics of the studies included in the SWI meta-analysis.

References	Technical aspects
	Magnetic field	Vendor	Method	ROIs drawn in	Voxel size (mm3)
Gupta et al. (45)	1.5 T	Siemens	Hypointensity scores	SWI	N/A
Zhang et al. (49)	3 T	Siemens	Phase shift	Phase images	0.5 × 0.5
Jin et al. (50)	3 T	GE	Phase values	Phase images	0.8 × 0.9 × 2
Lotfipour et al. (51)	7 T	Philips	Relative susceptibility	Modulus images and then applied to SWI	Protocol A: 0.7 × 0.7 × 0.7
					Protocol B 0.4 × 0.4 × 0.5
Wang et al. (46)	1.5 T	Siemens	Phase shift	Phase images	0.5 × 1 × 2
Rossi et al. (23)	3 T	Siemens	SWI contrast	Phase images	0.9 × 0.9 × 1.5
Wang et al. (47)	3 T	GE	Phase values	Phase images	0.5 × 0.8 × 2
Wu et al. (48)	3 T	Philips	Phase values	Phase images	0.5 × 0.6 × 1.5
Isaias et al. (12)	3 T	Philips	Phase values	Phase images	1 × 1 × 1
Martin-Bastida et al. (52)	3 T	Siemens	Phase shift	Phase images	N/A