Table 9 Degree of agreement between MRI findings and surgery
From: Magnetic resonance imaging in the workup of patients with perianal fistulas
| Â | Kappa value | 95% CI | Degree of agreement |
|---|---|---|---|
Site of internal opening | 0.93 | 0.88–0.94 | Very good |
Site of abscess | 1 | 1–1 | Almost perfect |
St. James classification | 0.90 | 0.80–0.91 | Very good |
Parks classification | 0.91 | 0.90–0.93 | Very good |