Table 3 Subgroup analysis
Subgroup | Se (95% CI) | Sp (95% CI) | LR+ (95% CI) | LR– (95% CI) | DOR (95% CI) | Number of studies |
|---|---|---|---|---|---|---|
1.5 T MRI | 0.69 (0.64–0.75) | 0.79 (0.67–0.87) | 1.64 (0.79–3.40) | 0.65 (0.37–1.15) | 3.18 (0.84–12.07) | 6 |
1.5 T MRA | 0.82 (0.79–0.84) | 0.59 (0.52–0.66) | 1.90 (1.39–2.58) | 0.26 (0.16–0.41) | 11.04 (4.75–25.63) | 16 |
3.0 T MRI | 0.87 (0.82–0.91) | 0.77 (0.64–0.87) | 2.40 (1.32–4.35) | 0.14 (0.04–0.49) | 20.47 (4.56–91.83) | 5 |
3.0 T MRA | NA | NA | NA | NA | NA | 2 |
Reference-1 MRI | 0.77 (0.73–0.81) | 0.79 (0.70–0.85) | 2.07 (1.30–3.30) | 0.38 (0.22–0.66) | 7.79 (2.87–21.12) | 10 |
Reference-1 MRA | 0.81 (0.78–0.84) | 0.59 (0.52–0.66) | 1.86 (1.33–2.59) | 0.30 (0.18–0.48) | 8.78 (3.67–21.04) | 14 |
Reference-2 MRI | 0.77 (0.62–0.92) | 0.50 (0.32–0.68) | NA | NA | NA | 1 |
Reference-2 MRA | 0.92 (0.85–0.96) | 0.67 (0.45–0.84) | 2.64 (1.20–5.84) | 0.14 (0.07–0.27) | 38.16 (9.84–148.0) | 4 |