Table 2 Illustrates the agreement between MRI and US in detecting the location of the fistula
| Â | Â | MRI: relation to sphincter | Total | Weighted Kappa | |||
|---|---|---|---|---|---|---|---|
No relation | Inter-sphincteric | Trans-sphincteric | Extra-sphincteric | ||||
US: Relation to sphincter | No relation | 0 | 0 | 4 | 4 | 8 | 0.706 |
| Â | Â | 0% | 0.0% | 9.1% | 100.0% | 6.7% | Â |
| Â | Inter-sphinctiric | 0 | 72 | 0 | 0 | 72 | Â |
| Â | Â | 0% | 100.0% | 0.0% | 0.0% | 60.0% | Â |
| Â | Trans-sphenctiric | 0 | 0a | 40 | 0 | 40 | Â |
| Â | Â | 0% | 0.0% | 90.9% | 0.0% | 33.3% | Â |
| Â | Extra-sphinctiric | 0 | 0 | 0 | 0 | 0 | Â |
| Â | Â | 0% | 0.0% | 0.0% | 0.0% | 0.0% | Â |
Total | Â | 0 | 72 | 44 | 4 | 120 | Â |
| Â | Â | Â | 100.0% | 100.0% | 100.0% | 100.0% | Â |