高频超声联合360°经直肠超声在肛瘘中的诊断价值

The diagnostic value of high-frequency ultrasound combined with 360° by trans-rectal ultrasound technique in anal fistula

目的探讨高频超声联合360°经直肠超声在肛瘘中的诊断价值。方法 2014年5月至2015年5月该院收治入院的80例肛瘘患者,均在手术前行高频超声联合360°经直肠超声检查,根据肛瘘的超声图像特征,对80例肛瘘进行分型,以手术结果为金标准,将得到的超声结果和手术结果进行对照。结果经过手术证实,80例肛瘘患者包括括约肌间瘘57例,经括约肌瘘19例,括约肌上瘘3例,括约肌外瘘1例,高频超声联合360°经直肠超声诊断主管的灵敏度96.81%,漏诊率3.19%,阳性预测值100.00%;诊断支管的灵敏度77.97%,漏诊率22.03%,阳性预测值97.87%;诊断内口的灵敏度89.17%,漏诊率10.83%,阳性预测值97.27%。结论高频超声联合经直肠超声能清楚显示内外括约肌并对肛瘘进行准确分型,确定内口的位置及瘘管的深度、数目、走形的方向,为临床提供丰富的影像学信息。

Objective To explore the diagnostic value of High-frequency ultrasound combined with 360 ° by trans-rectal Ul- trasound Technique in Anal fistula. Methods Participants 80 patients with Anal fistula in our hospital from May 2014 to May 2015. All in preoperative High-frequency ultrasound combined with 360°by trans-rectal ultrasound examination,Taping these 80 pa- tients According to the ultrasonic image characteristics of anal fistula for classification On the basis of surgical results,Compare ul- trasound results with surgery results,The final diagnosis of each case was proved by surgery which was taken as golden standard. Results these 80 cases of Anal fistula including 57 cases of fistula between Sphincter,19 cases of fistula wear out Sphincter,3 cases of fistula above the sphincter, 1 cases of fistula outside the sphincter which were all confirmed by surgery, the sensitivity,omission diagnostic rate and positive predictive value of main pipe diagnosed by High frequency ultrasound combined 360° by transrectal ultrasound were, 96.81%, 3.19 %, 100 % respectively, the sensitivity, omission diagnostic rate and positive predictive value of branch pipe diagnosed by High frequency ultrasound combined 360 ° by transrectal ultrasound were 77.97 % ,22.03 %,97.87 % respective- ly. the sensitivity,omission diagnostic rate and positive predictive value of internal opening diagnosed by High frequency ultrasound combined 360 ° by transrectal ultrasound were 89. 17%,10. 83%,97. 27%. Conclusion High frequency ultrasound combined by transrectal ultrasound has the characteristics of simple,rapid,convenient,economical, high accuracy which can clearly show the in- ternal and external sphincter and accurate classify the anal fistula. It also determine the position of the internal opening, the depth and number of the fistula,direction and Provide abundant imaging information for clinic and has high diagnostic value.