经直肠超声在肛瘘定位中的临床应用

目的 探讨经直肠超声（TRUS）在肛瘘定位诊断中的价值.方法 选取笔者医院2010年11月～2013年10月经手术证实肛瘘患者50例,对比分析运用TRUS法和常规法对肛瘘瘘管定位的临床应用价值.结果 经直肠超声法和常规法对肛瘘定位诊断的符合率分别为92％、66％,两者间的差异具有统计学意义（P＜0.05）;两种定位方法的准确性、敏感度及特异性比较均无统计学差异（P＞0.05）;对各类型肛瘘的定位诊断以及对肛瘘内口、主管和分支管的定位诊断,经直肠超声法明显优于常规法,两者间比较有统计学差异（P＜0.05）.结论 经直肠超声法对肛门内外括约肌显示较为清晰,能为肛瘘瘘管的诊断提供可靠依据为术前瘘管内口、主管及分支管的准确定位提供重要参考依据,具有一定的临床应用价值.

Clinical Application Value of Transrectal Ultrasonography in Diagnosing Fistula in Anus

Objective To assess the clinical value of transrectal ultrasonography（TRUS） in diagnosing fistula in anus.Methods A comparative study of TRUS and conventional method were performed on 50 cases of fistula in anus confirmed by operation.Retrospective analysis was undertaken to compare diagnostic accuracy of two methods.Results Forty six （92％） cases were correctly diagnosed by TRUS,while 33 （66％） were defined by conventional method （P ＜ 0.05）.The positioning accuracy of two methods,sensitivity and speciality had no significant difference （P ＞ 0.05）.Localization diagnosis of each type of anal fistula and mouth head inside the anal fistula and branch pipe of localization diagnosis,by TRUS was superior to conventional method.There was superior to the conventional method with TRUS in diagnosing fistula in anus,and diagnosing internal opening,main duct and branch duct of fistula in anus（P ＜0.05）.Conclusion TRUS was more accurate than conventional method in detailed scanning fistula in anus,therefore can accurately identify the internal and external sphincter internal opening,main duct and branch duct of fistula in anus.