Table 6 Comparison of accuracy rates in the depiction of perianal fistulas and their associated findings in correlation with surgical results
|  | Number % | Direct fistulography (%) | Indirect fistulography (%) |
|---|---|---|---|
Primary tract | 34 (100%) | 91.9 | 89.2 |
Associated abscesses | 10 (100%) | 89.2 | 100 |
Secondary tract | 16 (100%) | 97.6 | 75.6 |
Internal opening | 42 (96.6%) | 93.3 | 86.6 |