Comparative Evaluation of MR Fistulogram and X-ray Fistulography Versus Intra-operative Findings in the Assessment of Fistula in Ano

Objective: To Compare and Evaluate MR Fistulogram and X-ray Fistulography Versus Intra-operative Findings of Fistula in Ano. Design: Prospective observational study. Subjects/Patients: 56. Methods: A prospective observational study was conducted on 56 patients with clinically diagnosed fistula in ano at a tertiary care hospital. All patients underwent both MR fistulogram and X-ray fistulography prior to surgical intervention. The imaging findings were compared intraoperatively for accuracy in detecting primary and secondary tracts, and statistical significance was analyzed. Results: MR fistulogram demonstrated a high concordance rate (86.78%) with intraoperative findings, accurately identifying 49 tracts. In comparison, X-ray fistulography detected 45 tracts. Conclusion: MR fistulogram proves to be a superior diagnostic tool for evaluating fistula in ano compared to X-ray fistulography, providing greater anatomical detail, better detection of multiple tracts, and higher correlation with intraoperative findings.