Application Value of MRI in Preoperative Diagnosis of Complex Anal Fistula
Objective To explore the application value of magnetic resonance imaging(MRI)in preoperative diagnosis of complex anal fistula.Methods A retrospective analysis was performed on the data of 92 patients with complex anal fistula surgically confirmed in the hospital between August 2022 and July 2023.All patients underwent preoperative MRI examination.MRI results were compared with with surgical results to analyze the diagnostic value of MRI for complex anal fistula.Results Surgical results showed that there were 99 internal orifices of fistula,78 external orifices,111 main fistulas,11 collateral fistulas and 53 abscesses.Compared with the surgical results,diagnostic coincidence rates of fistula,internal orifice,external orifice,collateral fistula and abscess by MRI were 93.69％(P＜0.05),96.96％(P＞0.05),100.00％(P＞0.05),100.00％(P＞0.05)and 100.00％(P＞0.05),respectively.In the surgical results,main type of Parks classifications was inter-sphincter type(70.65％),followed by trans-sphincter type(29.35％).Compared with surgical results,Kappa value of MRI signs in the diagnosis of anal fistula Parks classifications was 0.973.Conclusion MRI has high diagnostic value for complex anal fistulas,which can determine classifications and provide more information for surgery.
Magnetic Resonance ImagingComplex Anal FistulaDiagnostic ValueParks Classification
万方数据
维普
