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目的：设计一种盆腔造影结合排粪造影的方法，以期区分直肠粘膜脱垂与直肠全层套叠，指导直肠内脱垂的治疗。材料与方法：８２例直肠内脱垂和３６例对照者行排粪造影结合盆腔造影。结果：在８２例患者中，５０例有直肠内脱垂征象、而盆底腹膜正常者为直肠粘膜脱垂，其中２６例伴异常会阴下降；３２例有直肠内脱垂征象、盆底腹膜随直肠前壁降入套叠鞘部、并构成直肠壁内疝疝囊者为直肠全层套叠，６例疝囊上口敞开者术中证实有内容物疝入，２０例伴异常会阴下降。结论：排粪造影结合盆腔造影是区分粘膜脱垂与全层套叠、诊断直肠内脱垂伴发的直肠壁内疝等盆底疝等直观、可靠的方法。
Objective: To design a method of pelvic contrast combined with defecography, in order to distinguish between rectal mucosal prolapse and full-thickness rectal intussusception, guiding the treatment of rectal prolapse. Materials and Methods: 82 cases of rectal prolapse and 36 cases of control were combined with pelvic defecography. Results: Of the 82 patients, 50 had rectal prolapse signs, while those with normal pelvic peritoneum had rectal mucosal prolapse. Among them, 26 patients had abnormal perineal descent. 32 patients had symptoms of rectal prolapse and pelvic peritoneum The anterior wall of the rectum descended into the sheath sheath, and the rectum wall hernia hernia sac consisted of full-thickness rectal intussusception. Six cases of hernia sac opening were confirmed with content herniation and 20 cases with abnormal perineal descent. Conclusion: The combination of defecography and pelvic radiography is an intuitive and reliable method to distinguish pelvic floor hernia such as rectal wall internal hernia associated with diagnosis of rectal prolapse with mucosal prolapse and full-thickness intussusception.