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Table 2 Accuracy of offline analysis in the diagnosis of four endometrial categories (polyp, hyperplasia, cancer, and normal endometrium)

From: Diagnostic efficacy of gel infusion sonography in post-menopausal bleeding

Offline analysis Sensitivity % Specificity % PPV % NPV % Accuracy %
Polyp 91.3 (85–93) 92.4 (89–96) 89.8 (81–90) 95.1 (89–97) 90.7 (83–95)
Hyperplasia 75 (69–75) 64.1 (58–66) 69.2 (68–78) 77.3 (70–81) 71 (69–75)
Cancer 88.2 (87–91) 91.4 (84–92) 87.1 (80–88) 92.6 (86–94) 90.4 (83–96)
No endometrial abnormality     91.2 (87–95)  
  1. Note: sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy data are percentages. All numbers in parentheses are 95% CIs
  2. These results include the analysis of clips after the exclusion of poor quality videos