Characteristics of included studies
| Study | Country | Total Sample Size | Mean Age (Range) (yr) | % Male | MR Imaging Magnet | <2 mm3 Resolution | T2 or FLAIR WI | 3D |
|---|---|---|---|---|---|---|---|---|
| Kim et al, 20023 | US | 225 | NA (1–18) | 44 | 1.5 | No | Yes | No |
| Kumra et al, 20064 | US | 60 | NA (10–21) | NA | 1.5 | No | Yes | Yes |
| Seki et al, 20105 | Japan | 110 | NA (5–8) | 54 | 1.5 | No | Yes | Yes |
| Gur et al, 20136 | US | 1400 | 14.8 (8–21) | 48 | 3 | Yes | No | Yes |
| Kaiser et al, 20157 | US | 114 | 8.3 (0.2–18) | 41 | 3 | Yes | Yes | Yes |
| Monterrey et al, 20178 | US | 65 | 10.1 (NA) | 71 | 3 | Yes | No | Yes |
| Jansen et al, 20179 | Netherlands | 3966 | 10.1 (8.6–11.9) | 49 | 3 | Yes | Yes | Yes |
Note:—NA indicates not applicable; WI, weighted imaging.