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目的:分析节育环异位的CT表现并分析漏误诊的原因。方法对25例节育环异位患者经手术、腹腔镜和宫腔镜证实的患者,做回顾性分析。结果 25例中有8例节育环位于腹腔、肠腔、膀胱、腹壁等部位;8例开腹手术取出节育环,手术所见与CT所见基本一致;25例中有1例为双角子宫,节育环位于子宫右角并宫腔内旋转;25例中有3例CT判断节育环宫内旋转异位并节育嵌入子宫肌层,宫腔镜检查符合CT所见;25例中有10例发生宫腔内旋转异位,25例中有7例节育环位于子宫颈或阴道内。25例节育环异位有18例为T型环,5例为环型节育环,2例为三角形节育环。结论 CT可对节育环异位可做出明确诊断;能对异位节育环与周围脏器的关系做出明确定位,能为手术前的方案提供准确的依据。
Objective: To analyze the CT manifestations of contraceptive ring and analyze the causes of misdiagnosis. Methods A retrospective analysis was performed on 25 patients with ectopic pregnancy who were proved by operation, laparoscopy and hysteroscopy. Results 8 of the 25 cases were located in the abdominal cavity, intestine, bladder, abdominal wall and other parts of the ring; 8 cases of open surgery to remove the birth control ring, the surgical findings and CT seen basically the same; 25 cases, 1 case of double angle uterus , IUD was located in the right corner of the uterus and uterine rotation; 3 cases of 25 cases of intrauterine rotation to determine ectopic pregnancy IUD and sterility embedded in the myometrium, hysteroscopy consistent with the CT seen; 25 cases, 10 cases occurred Uterine rotation ectopic, 25 cases of 7 cases of IUD in the cervix or vagina. There were 18 cases of T-ring in 25 cases of idiopathic ring, 5 cases of ring-shaped IUD, and 2 cases of triangular IUD. Conclusion CT can make a clear diagnosis of ectopic pregnancy ring; can be a clear positioning of the relationship between ectopic pregnancy and the surrounding organs, can provide accurate preoperative program basis.