经直肠超声联合高频超声在肛周脓肿和肛瘘诊断中的价值

为探讨经直肠超声联合高频超声（简称联合超声）在肛周脓肿、肛瘘诊断中的价值，回顾术前行联合超声检查的肛周脓肿（72例）和肛瘘（48例）患者资料，将联合超声检查结果与手术结果进行对比分析。结果显示，联合超声诊断肛周脓肿、肛瘘显示内口的敏感度分别为97．2％（70／72）和86．7％（52／60），阳性预测值分别为100％和94．5％（52／55）；联合超声诊断单纯性、复杂性肛瘘的敏感度分别为90．3％（28／31）和70．6％（12／17），阳性预测值分别为96．6％（28／29）和92．3％（12／13）。结果表明，联合超声对肛周脓肿的诊断、肛瘘内口及瘘管数目和位置的显示具有很高的临床价值。

Transrectal Ultrasound Combined with High-frequency Ultrasound for Dignosing Perianal Abscess and Anal Fistula

In order to explore the diagnosis value of transrectal ultrasound combined with high-frequency ultrasound examination（named as the combined ultrasound） for perianal abscess （PA） and anal fistula （AF） ,authors analysed the data of 72 PA paitnets and 48 AF patients who had received the combined ultrasound examination before operation retrospectively,and compared the data with operative results. As results,the combined examination had the sensitivity of 97.2 % （70/72）,86.7 % （52/60） in diagnosing abscess and fistula showing internal opening, its positive prognostic value was 100 %, 94.5% （52/55） respectively; the sensitivity in diagnosing simple fistula or complex fistula was 90.3%（28/31）,70.6%（12/17）,its positive prognostic value was 96.6 %（28/29）, 92.3% （12/13） respectively. These results show that the combined ultrasound has important clinical value in diagnosing perianal abscess,showing internal opening and the number ＆ location of fistula tracts.