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Table 2 Accuracy of TVS in diagnosing DIE with laparoscopy and histopathology as the gold standard

From: Role of preoperative ultrasound mapping in the surgical management of deep infiltrating endometriosis: a prospective observational study

DIE Localization Prevalence % (n) Sensitivity (%) Specificity (%) PVP (%) PVN (%) LR+ LR- Accuracy (%)
Group 1
 Rectovaginal septum 19.8 (20) 67.9 98.6 95.0 88.9 48.5 0.33 90.1
 Vagina 12.9 (13) 52.2 98.7 92.3 87.5 40.2 0.48 88.1
Group 2
 Right USL 42.6 (43) 84.0 98.0 97.7 86.2 42.0 0.16 91.1
 Left USL 40.6 (41) 80.9 94.4 92.7 85.0 14.5 0.20 88.1
 Torus uterinum 28.7 (29) 96.4 97.3 93.1 98.6 35.2 0.04 97.0
 Right parametrium 19.8 (20) 73.9 96.2 85.0 92.6 19.5 0.27 91.1
 Left parametrium 15.8 (16) 63.6 97.5 87.5 90.6 25.4 0.37 90.1
Group 3
 Cranial rectum 23.8 (24) 100.0 98.7 95.8 100.0 76.9 0.00 99.0
 Caudal rectum 17.8 (18) 100.0 98.8 94.4 100.0 83.3 0.00 99.0
Group 4
 Bladder 3.0 (3) 100.0 100.0 100.0 100.0 0.0 100.0
 Right ureter 5.0 (5) 66.7 98.9 80.0 97.9 60.6 0.34 97.0
 Left ureter 4 (4) 60.0 99.0 75.0 97.9 60.0 0.40 97.0
Group 5
 Scar/anterior abdominal wall endometriosis 4 (4) 100.0 100.0 100.0 100.0 0.00 100.0
  1. DIE deep infiltrating endometriosis, PVP positive predictive value, PVN negative predictive value, LR+ positive likelihood ratio, LR− negative likelihood ratio, USL uterosacral ligament