磁共振成像2017，Vol.8Issue(5)：354-358,5.DOI:10.12015/issn.1674-8034.2017.05.007
3.0T高分辨率MRI在肛瘘分型与内口定位中的应用价值
The value of 3.0 T high-spatial-resolution MRI in the fistula classification and internal opening location
韦小梅 1邓德茂 1梁玲艳 1陈文福 1孙沛毅1
作者信息
- 1. 广西中医药大学第一附属医院放射科,南宁 530023
- 折叠
摘要
Abstract
Objective: To evaluate the value of 3.0 T high-spatial-resolution MR imaging in the fistula classification and internal opening location. Materials and Methods: One hundred and fifty-six patients with anal fistulas underwent 3.0 T high-spatial-resolution MR imaging, and two experienced radiologists analyzed the images separatedly to identify the orientation of the fistula track, the internal opening, whether with ramifications and abscess, and the relationship between the primary track and the anal sphincter, compared with the surgical exploration. All cases were classified according to Parks classification, and the internal openings were expressed by lithotomy position of clock location method. MR imaging was correctly revealed if the internal opening was observed in the same quadrant as the surgical exploration. Results: (1) The coincidence rate was 100% of the classification according to the primary track on MR imaging, compared with surgical exploration in 156 cases: 119 samples and 37 complex anal fistula. The accuracy rates of classification by MR imaging compared with surgical exploration were: inter-sphincteric 97.70% (87/85), trans-sphincteric 96.30% (52/54), supra-sphincteric 90.90% (10/11), extra-sphincteric 85.71% (7/6), respectively. (2) The accuracy rate of internal opening was 92.20% (189/205). (3) 196/198 primary tracks and 20/24 ramifications were identified, the accuracy rate was more than 80%. (4) Seventy-four perianal abscess were confirmed by MRI as well as surgical exploration, the accuracy was equal to 100%. Conclusions: 3.0 T high-spatial-resolution MR imaging and dynamic contrast enhancement scanning has an important clincal value in evaluating the fistula classification and internal opening location.关键词
肛肠疾病/瘘/磁共振成像Key words
Proctorectal diseases/Fistula/Magnetic resonance imaging分类
医药卫生引用本文复制引用
韦小梅,邓德茂,梁玲艳,陈文福,孙沛毅..3.0T高分辨率MRI在肛瘘分型与内口定位中的应用价值[J].磁共振成像,2017,8(5):354-358,5.
