超高场磁共振体外相位阵列线圈对肛瘘的诊断价值

目的探讨超高场磁共振体外相位阵列线圈对肛瘘检查的准确性及其应用价值。方法回顾性分析42例经手术和病理证实的肛瘘患者与术前磁共振对比分析内口、窦道、肛周脓肿的数量。结果42例患者共发现内口49个，56条窦道，肛周脓肿25个，MRI显示的内口、窦道、肛周脓肿敏感度分别为93．8％、92．8％、100．0％。结论超高场磁共振体外相位阵列线圈对肛瘘的准确率高，检查便利，可作为术前检查和术后随访的首选之一。

Objective To investigate the accuracy!and clinical application value of external phase array coil in ultra-high field MRI in perianal fistulas detecting. Methods Retrospective analysis of MRI data prior to surgery from 42 surgically and pathologically proved perianal fistulas patients, including the number of internal opening, fistula sinus, and perianal abscess. Results In the 42 patients, 49 internal openings, 56 fistula sinus, and 25 perianal abscess cases were found. MRI showed the sensitivity of distinction on internal openings, fistula sinus, and perianal abscess were 93.8%, 92.8%, 100.0%, respectively. Conclusion Because of its high accuracy and convenience in perianal fistulas diagnosis, external phase array coil in ultra- high field MRI can be one of the best options for both prior surgical examination and post-surgical evaluation.