Table 3.

Diagnostic accuracy of 2D US compared with hysteroscopy ± laparoscopy in diagnosing female genital tract congenital anomalies

Study	Cases (n)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)
Ludwin et al. [38]	117	91	92	99	52	84
De Felice et al. [14]	104	100	99	86	100	96
Momtaz et al. [44]	38	55	95	84	83	79
Valenzano et al. [58]	54	86	100	100	91	94
Ragni et al. [50]	98	73	100	100	97	93
Traina et al. [57]	80	64	99	88	94	86
Soares et al. [55]	65	44	100	100	92	84
Alatas et al. [2]	62	50	100	100	97	87
Nicolini et al. [46]	89	43	98	94	68	76
Mean (95 % CI)		67.3 (51.0–83.7)	98.1 (96.0–100)	94.6 (89.4–99.8)	86.0 (73.7–98.3)	86.6 (81.3–91.8)

2D US two-dimensional ultrasound, PPV positive predictive value, NPV negative predictive value, CI confidence interval