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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 investigate the diagnostic value of high frequency ultrasound combined with 360 ° transrectal ultrasound in anal fistula. Methods 80 cases of anal fistula admitted to our hospital from May 2014 to May 2015 were examined by high frequency ultrasound combined with 360 ° transrectal ultrasound before operation. According to the characteristics of the ultrasound image of anal fistula, 80 cases of anal fistula were classified , The results of the surgery as the gold standard, will be obtained ultrasound results and surgical results were compared. Results The surgeries confirmed that 80 cases of anal fistula included 57 cases of sphincteric fistula, 19 cases of sphincter fistula, 3 cases of sphincter fistula, 1 case of sphincter fistula, 96.81% of high frequency ultrasound combined with 360 ° transrectal ultrasound, The misdiagnosis rate was 3.19%, the positive predictive value was 100.00%. The sensitivity of diagnosis branch was 77.97%, the rate of misdiagnosis was 22.03%, the positive predictive value was 97.87%. The sensitivity of diagnosis was 89.17%, the rate of misdiagnosis was 10.83% and the positive predictive value was 97.27%. Conclusion High-frequency ultrasound combined with transrectal ultrasound can clearly show the internal and external sphincter and the accurate classification of anal fistula, to determine the position of the mouth and the depth of the fistula, the number of fistula, walking direction, providing rich imaging information for clinical.