Table 6 Diagnosis results for two physicians
From: Accuracy of magnetic resonance imaging in defining dentate line in anal fistula
Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV (%) | NPV (%) | |
|---|---|---|---|---|---|
According to anal canal mucosa | |||||
Observer 1 | 91.7 | 61.1 | 84.6 | 88.7 | 68.8 |
Observer 2 | 98.3 | 70.0 | 91.0 | 90.5 | 93.3 |
According to position of the internal opening | |||||
Observer 1 | 84.7 | 78.9 | 83.3 | 92.6 | 62.5 |
Observer 2 | 91.2 | 71.4 | 85.9 | 89.7 | 75 |
According to anal canal mucosa and position of the internal opening | |||||
Observer 1 | 89.7 | 75 | 85.9 | 89.7 | 71.4 |
Observer 2 | 93.1 | 70 | 87.2 | 90 | 77.8 |