经直肠腔内超声定位诊断肛瘘的临床研究

Endorectal Ultrasonography Used in Niveau Diagnosis of Anal Fistula：Clinical Study

为探讨经直肠腔内超声（端扫式凸阵腔内探头）定位诊断肛瘘的临床应用价值，对74例拟行手术治疗的肛瘘患者进行经直肠腔内超声扫描，并将术前超声检查结果与手术结果进行X寸照分析。结果显示，74例患者均经超声检查和于术证实为肛瘘。超声对肛瘘内口的诊断准确率为94．6％（70／74），对肛瘘主管的诊断准确率为97．3％（72／74），对肛瘘支管的诊断准确率为100％（5／5），对肛瘘Parks分型的诊断准确率为97．3％（72／74）。结果表明，经直肠腔内超声可清晰显示肛瘘内口位置、瘘管走行及其与肛管内外括约肌、肛提肌的关系，是一种术前定位诊断肛瘘的理想方法。

In order to explore the clinical application value of endorectal ultrasonography（ERUS） used in niveau diagnosis of anal fistula,the 74 patients with anal fistula to be subjected to surgery received ERUS scanning, then the obtained preoperative scanning results were compared with operative results. As results, both results all confirmed 74 patients being of anal fistula,accurary rate of ERUS in diagnosing inner open ing of fistula was 94. 6%（70/74）, in diagnosing main tract 97. 3%（72/74）, in diagnosing branch tracts 100 %（5/5） ,in Parks typing of fistula 97.3 %（72/74）. Results show that ERUS can distinctly show inner opening location,distribution of fistula tracts and their relation with anal internal or external sphincter and levator ani muscle,thus it could be an ideal method for niveau diagnosis of anal fistula.