Table 2 Results of meta-regression and subgroup analysis on CEUS
Subgroups | Studies | Sensitivity | I2 value | P value | Specificity | I2 value | P value |
|---|---|---|---|---|---|---|---|
Imaging duration |  |  |  | 0.08 |  |  | < 0.001 |
  < 3 min | 7 | 0.78 (0.71–0.84) | 0.00% |  | 0.95 (0.92–0.97) | 44.51% |  |
  ≥ 3 min | 6 | 0.88 (0.73–0.95) | 51.06% |  | 0.89 (0.83–0.93) | 37.25% |  |
Lesion size |  |  |  | < 0.001 |  |  | 0.17 |
  < 10 mm | 8 | 0.79 (0.71–0.85) | 33.36% |  | 0.94 (0.89–0.97) | 70.22% |  |
  ≥ 10 mm | 6 | 0.85 (0.71–0.93) | 25.91% |  | 0.91 (0.79–0.96) | 56.91% |  |