目的 通过MRI排粪电影及消化道 传输试验检查，评价影像学对便秘的诊 断价值，探讨便秘的病因。方法 对58例 临床诊断便秘的患者先作MRI排粪电影检 查，再作消化道传输试验检查，参考王 毅、龚水根教授的测量指标及诊断标准作 出影像诊断，并与临床及术中结果对比， 进行回顾性分析。 结果 出口梗阻41例， 其中直肠前突16例，直肠粘膜脱垂5例， 前突合并脱垂7例，盆底痉挛综合征4例， 会阴下降综合征3例，多种合并异常6例。 消化道传输异常12例，真性慢传输8例， 假性慢传输4例。其中，6例为出口梗阻合 并传输异常。手术治疗37例，药物治疗21 例。结论 MRI排粪电影联合消化道传输试 验是一种简单无创的、全面动态的诊断便 秘病因的检查方法，能帮助临床医生制定 行之有效的治疗方案。

Objective Through MRI defecation films and digestive tract of transmission test, evaluate the diagnostic value of imaging for constipation, explore the causes of constipation. Methods In 58 cases with clinical diagnosis of constipation, MRI defecation film inspection, then make the digestive tract transmission test, imaging diagnosis reference Wang Yi and Gong Shuigen professor to measurement and diagnosis standard and compared with clinical or intraoperative results, were retrospectively analyzed. Results Among 41 cases with outlet obstruction, and 16 cases is rectal before protrusion, rectal mucosal prolapse in 5 cases, 7 cases before protrusion merger prolapse, 4 cases is pelvic floor spasm syndrome, perineum descending syndrome in 3 cases, multiple merger abnormal is 6 cases. Among 12 cases with abnormal gastrointestinal transmission, 8 cases is true slow transmission, 4 cases is pseudo slow transmission. Among them, 6 cases of outlet obstruction merge transmission anomalies. 37 cases is surgical treatment, 21 cases is drug treatment. Conclusion MRI defecation film unite digestive tract transmission test is a simple and noninvasive, comprehensive and dynamic inspection method for diagnosis of constipation cause, to help clinicians to formulate effective treatments.