Table 4.
Pooled statistics of ultrasonography for the diagnosis of disc displacement based on MRI using meta-analyses
| Outcomes | Number of studies | Sensitivity | Specificity | LR+ | LR− | DOR | AUC (SE) | Q* (SE) |
|---|---|---|---|---|---|---|---|---|
| DD-CM (Overall) | 14 | 0.78 (0.75–0.81) | 0.77 (0.73–0.80) | 3.02 (1.96–4.64) | 0.32 (0.23–0.45) | 10.80 (5.46–21.38) | 0.8359 (0.0348) | 0.7681 (0.0321) |
| Static | 8 | 0.76 (0.72–0.80) | 0.76 (0.71–0.81) | 3.04 (1.69–5.47) | 0.35 (0.24–0.52) | 9.08 (3.64–22.61) | 0.8016 (0.0494) | 0.7373 (0.0432) |
| Static and dynamic | 6 | 0.81 (0.77–0.85) | 0.77 (0.70–0.82) | 2.84 (1.42–5.66) | 0.27 (0.14–0.55) | 12.48 (3.79–41.06) | 0.8551 (0.0653) | 0.7861 (0.0624) |
| ≥ 12 MHz | 5 | 0.80 (0.76–0.84) | 0.85 (0.79–0.89) | 4.85 (3.49–6.73) | 0.24 (0.19–0.29) | 21.41 (13.69–33.48) | 0.8670 (0.0254) | 0.7975 (0.0249) |
| < 12 MHz | 3 | 0.71 (0.65–0.77) | 0.69 (0.56–0.81) | 1.88 (0.69–5.12) | 0.49 (0.34–0.71) | 5.80 (2.93–11.50) | 0.7652 (0.0432) | 0.7061 (0.0362) |
| University of Innsbruck | 5 | 0.82 (0.78–0.85) | 0.87 (0.82–0.90) | 5.75 (3.74–8.85) | 0.23 (0.13–0.42) | 28.27 (11.68–68.42) | 0.9311 (0.0276) | 0.8664 (0.0333) |
| Other centers | 9 | 0.74 (0.69–0.78) | 0.67 (0.61–0.73) | 2.04 (1.47–2.84) | 0.43 (0.33–0.56) | 5.30 (3.05–9.23) | 0.7566 (0.0355) | 0.6989 (0.0296) |
| DD-MMO (Overall) | 9 | 0.70 (0.65–0.74) | 0.88 (0.86–0.91) | 5.08 (3.36–7.68) | 0.40 (0.26–0.63) | 13.53 (6.27–29.18) | 0.9523 (0.0213) | 0.8936 (0.0292) |
| Static | 7 | 0.66 (0.60–0.71) | 0.87 (0.84–0.90) | 4.27 (2.52–7.24) | 0.48 (0.30–0.76) | 9.72 (3.92–24.06) | 0.9546 (0.0309) | 0.8968 (0.0431) |
| Static and dynamic | 2 | 0.82 (0.73–0.89) | 0.90 (0.85–0.94) | 7.58 (4.07–14.13) | 0.25 (0.08–0.79) | 29.91 (5.44–164.3) | ________ | ________ |
| ≥ 12 MHz | 4 | 0.70 (0.64–0.76) | 0.90 (0.86–0.93) | 6.36 (3.93–10.28) | 0.35 (0.24–0.49) | 20.69 (9.61–44.53) | 0.9415 (0.0429) | 0.8794 (0.0548) |
| < 12 MHz | 1 | ________ | ________ | ________ | ________ | ________ | ________ | ________ |
| University of Innsbruck | 5 | 0.71 (0.65–0.76) | 0.90 (0.87–0.92) | 6.12 (3.77–9.94) | 0.38 (0.20–0.73) | 17.14 (6.98–42.09) | 0.9498 (0.0275) | 0.8903 (0.0371) |
| Other centers | 4 | 0.65 (0.53–0.75) | 0.86 (0.80–0.90) | 3.85 (2.15–6.90) | 0.47 (0.26–0.84) | 10.30 (2.95–35.97) | 0.9638 (0.0315) | 0.9102 (0.0477) |
| DDWR | 4 | 0.71 (0.63–0.79) | 0.84 (0.78–0.88) | 3.76 (1.26–11.18) | 0.40 (0.24–0.68) | 9.79 (2.24–42.87) | 0.7946 (0.0770) | 0.7312 (0.0668) |
| DDWoR | 6 | 0.79 (0.73–0.84) | 0.88 (0.84–0.92) | 6.39 (3.46–11.78) | 0.26 (0.15–0.46) | 29.18 (9.35–91.07) | 0.9375 (0.0379) | 0.8743 (0.0474) |