Clinical value of anorectal ultrasound in diagnosing the internal opening of anal fistula
10.3760/cma.j.cn131148-20250424-00224
- VernacularTitle:肛管直肠超声诊断肛瘘内口的临床价值
- Author:
Hua YIN
1
;
Jingjing HU
1
;
Fangfang HONG
1
;
Xiuzhi WEI
1
Author Information
1. 宁波市第二医院超声科，宁波 315010
- Publication Type:Journal Article
- Keywords:
Anal fistula;
Anorectal ultrasound;
Internal opening
- From:
Chinese Journal of Ultrasonography
2025;34(10):864-868
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the clinical value of anorectal ultrasound in diagnosing the internal opening of anal fistulas.Methods:A total of 1 353 patients with anal fistulas who were admitted to the Department of Anorectal Surgery at Ningbo No.2 Hospital and underwent anorectal ultrasound examinationResults:The accuracy of anorectal ultrasound in diagnosing the internal opening of anal fistulas was 89.32%. The accuracy for simple anal fistulas was 95.96% compared to 77.86% for complex anal fistulas，with a statistically significant difference（ χ2=178.328， P<0.001）. Further analysis revealed significantly higher rates of misdiagnosis and missed diagnosis in complex anal fistulas（ R=3.776，9.009），with statistically significant differences（| R|>1.960）. Conclusions:Anorectal ultrasound demonstrates high accuracy in diagnosing the internal opening of anal fistula，providing valuable guidance for clinical treatment decisions.
