经直肠超声联合高频超声诊断肛周脓肿、肛瘘的应用价值

Application Value of Transrectal Ultrasound and High-Frequency Ultrasonic in Diagnosing in Perirectal Abscess and Anal Fistula

目的:探讨经直肠超声联合高频超声诊断肛周脓肿、肛瘘的声像图表现及其临床应用价值。方法:回顾性分析2007年6月～2008年6月77例住院病人,男66例,女11例,平均年龄38.6岁,其中肛周脓肿16例,肛瘘61例,使用经直肠超声联合高频超声检查,所得结果与手术结果对照。结果:肛周脓肿、肛瘘的声像图与周围正常组织存在明显差异;肛周脓肿单发13例,多发3例,诊断符合率:100%;单纯性肛瘘37例,3例内口未明确显示,诊断符合率:92%;复杂性肛瘘24例,7例内口或支瘘管漏诊,诊断符合率:71%。结论:经直肠超声联合高频超声检查对明确肛周脓肿的位置、数目、大小范围,肛瘘瘘管的走行、数目及内口的位置具有很高的诊断价值。

Objective： To discuss the ultrasonograhic manifestations of perirectal abscess and anal fistula and investigate the application value of transrectal ultransound and high-frequency in diagnosing in perirectal abscess and anal fistula. Methods ： a total of 77patients were enrolled in this study during July 07 to July 08, we performed regular transrectal ultrasound and high-frequency in these 77 patients before operation, including 16 perianorectal abscess patients and 61 anal fistula patients. Male 66, female11, average aged 38.6; the accuracy of transrectal ultrasound and high-frequency ultrasonic with a reference standard derived from surgical fmdings. Results： the ultrasonograhic manifestations of perianorectal abscess and anal fistula were clearly different from around normal tissues. The coincidence rate of 13 single perianorectal abscess and 3 complicated perianorectal abscess was 100%; the coincidence rate of 37 single anal fistulas was 92%; The coincidence rate of 24 comphcated anal fistula was71%. 3 single anal fistula patients and 7 complicated anal fistula patients were uncertain of the secondary trend of fistula or the location of fistula internal openings. Conclusion： transrectal ultrasound and high-frequency ultrasonic can ascertain the location, number, size of perianorectal abscess and clearly estimate the trend and number of anal fistula and locate internal entrance. They were important in the diagnosis and treatment of perianorectal abscess and anal fistula.