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Table 2 Surgical findings in 94 patients with pelvic endometriosis. Sensitivity, specificity, PPV, NPV, and accuracy for TVUS findings and agreement with endometriosis findings at laparoscopy

From: Applying a statistical method in transvaginal ultrasound training: lessons from the learning curve cumulative summation test (LC-CUSUM) for endometriosis mapping

Disease location

Cases

(n = 94)

Sensitivity

(%)

Specificity

(%)

PPV

(%)

NPV

(%)

Accuracy

(%)

Endometriomas

57 (60.6%)

100

100

100

100

100

Bladder nodules

11 (11.7%)

90.9

100

100

98.8

98.9

Vaginal nodules

39 (41.5%)

92.3

98.2

97.3

94.7

95.7

Pouch of Douglas obliteration

48 (51.1%)

93.8

91.3

91.8

93.3

92.5

Bowel lesions (rectum, sigma, POD)

20 (21.3%)

80

98.6

94.1

94.8

94.7

Uterosacral ligaments

50 (53.2%)

60

70.5

69.8

60.8

64.9

  1. PPV positive predictive value, NPV negative predictive value, TVUS transvaginal ultrasound