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Head and Neck Imaging订阅

Study on the Clinical Value of Magnetic Resonance Imaging for Anal Fistula

Author：ZHOU Jing-jing, ZHU Bin, NIU Lei

affiliation：Department of Radiology, the Affiliated Drum Tower Hospital of Nanjing University Medical College, Suqian People's Hospital, 223800

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Abstract

Objective To explore the application value of magnetic resonance imaging (MRI) in the examination of anal fistula. Methods 41 patients with anal fistula diagnosed by operation and pathology in the hospital were selected as the study object. Before operation, they all received MRI scanning and the imaging characteristics were analyzed and compared with postoperative pathology. Results Taking the postoperative pathology as the "gold standard", the accuracy rate and sensitivity of preoperative MRI in diagnosis of main fistula respectively were 100% and 100% while of fistula branch were 88.69% and 96.0%; of the internal opening were 95.08% and 96.67%; of the external opening were 96.42% and 98.18%; of abscess were 95.83% and 95.83%. The coincidence rates of preoperative MRI in diagnosis of anal sphincter inter-type, the type of per-anal sphincter, anal sphincter superior type and anal sphincter respectively were 92.59%, 83.33%, 100% and 100%. Conclusion The coincidence rates between preoperative MRI in the diagnosis of anal fistula structure, classification, etc. and postoperative pathology are high, which can provide information for clinical treatment programs and is helpful to improve the therapeutic effect.

【Keyword】Anal Fistula; Magnetic Resonance Imaging; Pathology

【Chart number】R657.1+6

【Document Identification Number】A

【DOI】 10.3969/j.issn.1672- 5131.2016.03.031

Chinese journal of CT and MRI

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