目的 观察造影CT三维成像在肛 瘘术前诊治中的应用价值。方法 对42例 疑似肛瘘患者的临床资料进行回顾性分 析。均于术前行瘘管造影CT平扫及三维重 建，根据手术结果评估造影CT三维成像对 肛瘘的诊断效能。结果 肛肠专科体检对 肛瘘分类诊断与手术结果符合率为59.52% 显著低于造影CT三维成像与手术结果符合 率100%(P＜0.05)。造影CT三维成像对肛 瘘分型诊断与手术结果符合率为90.48%。 造影CT三维成像对肛瘘内口、支管和脓 肿的术前诊断准确度分别为63.89%、 89.47%、100%。结论 造影CT三维成像在 对肛瘘分类、分型及对肛瘘内口、支管和 脓肿等方面术前诊断效果良好，对指导手 术治疗有重要意义。

Objective To observe the application value of three-dimensional imaging of contrast CT in preoperative diagnosis and treatment of anal fistula. Methods The clinical data of 42 patients with suspected anal fistula were retrospectively analyzed. All patients were given fistulography CT plain scan and three-dimensional reconstruction before operation. The diagnostic efficacy of three-dimensional imaging of contrast CT in the diagnosis of anal fistula was evaluated. Results The coincidence rate of classification diagnosis of anal fistula and surgical results in anorectal physical examination was significantly lower than that of the three-dimensional imaging of contrast CT and surgical results (59.52% vs 100%) (P<0.05). The coincidence rate of classification diagnosis of anal fistula and surgical results was 90.48% in three-dimensional imaging of contrast CT. The preoperative diagnostic accuracies of three-dimensional imaging of contrast CT on the internal fistula, branches and abscess were 63.89%, 89.47% and 100% respectively. Conclusion Three-dimensional imaging of contrast CT has good preoperative diagnosis effects on the types and classification of anal fistula and the internal fistula, branches and abscess. And it has important significance in guiding surgical treatment.