Table 3. Diagnostic accuracy of transvaginal sonography to detect uterine lesions using hysteroscopy as reference
  Endometrial
Polyp
Submucous Leiomyoma Uterine
Synechiae
Uterine
Malformation
Sensitivity 15 (11-21) 41 (28-56) 8 (2-20) 17 (9-29)
Specificity 97 (96-98) 95 (93-96) 99 (99-99) 100 (99-100)
LR+ 4.8 (2.9-7.9) 7.5 (4.9-11.5) 10.6 (2.9 (38.4) 36.9 (12.8-106.4)
LR- 0.9 (0.8-0.9) 0.6 (0.5-0.8) 0.9 (0.8-1.0) 0.8 (0.7-0.9)
Data are presented as percentage with 95% confidence interval.
LR+: positive likelihood ratio; LR-: negative likelihood ratio.