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Table 5 Comparison of diagnostic test results of horizontal and vertical rigidities under the barium enema examination profile view for predicting submucosal invasion depth ≥ 1.8 mm

From: Role of barium enema examination for the diagnosis of submucosal invasion depth in T1 colorectal cancers

  Sensitivity (%) Specificity (%) PPV (%) NPV (%) Accuracy (%)
Horizontal rigidity ≥4.5 mm 82.6 77.4 86.4 71.9 80.7
Vertical rigidity ≥0.7 mm 91.3 54.7 77.8 78.4 77.9
Horizontal rigidity ≥4.5 mm and vertical rigidity ≥0.7 mm 81.5 77.4 86.2 70.1 80.0
  1. PPV positive predictive value, NPV negative predictive value