【摘要】 目的 以手术病理为金标准对照，回顾性分析异位妊娠的MRI特征。方法 收集11例手术证实的异位妊娠病例：宫角妊娠1例，间质部妊娠6例，输卵管峡部妊娠2例，输卵管壶腹妊娠1例，原发性腹腔妊娠1例。其中6例仅行MR平扫，5例行平扫及增强扫描。评价胎囊可视度，胎囊位置、大小，胎囊内部信号特点，胎囊周围血管情况，输卵管扩张，输卵管积血、腹腔积血，以及子宫内膜厚度，卵巢内黄体、功能性囊肿等改变。结果 11例病例中，10例可见异位妊娠病灶的直接征象，位置判断均同手术一致。1例输卵管妊娠未见胎囊，存在输卵管积血和盆腔积血。结论 MRI可全面观察胎囊同周围结构的解剖关系明确定位，根据胎囊的自身信号特点及异位妊娠的常见征象帮助诊断和鉴别诊断。更多还原

【Abstract】 Objective To analyze retrospectively MRI features of ectopic pregnancy correlated with pathology.Methods Eleven patients with pathologically proved ectopic pregnancy were enrolled in this study:one with cornual pregnancy,six with interstitial pregnancy,two with tubal isthmus pregnancy,one with ampullary pregnancy,and one with primary abdominal pregnancy.Six underwent MRI plain scan,and five underwent MRI both plain scan and enhancement scan.We evaluated the location,the size,the signal intensity of the gestational sac(GS),vessels around the GS,dilatation tubal,hematosalpinx and hemoperitoneum.Changes of the thickness of the endometrium,functional ovarian cysts and ovarian corpus luteum were also evaluated.Results Among these eleven patients,GSs were detected in ten patients.The locations of the GSs on MRI were corresponding with the results of surgical exploration.GS was not detected in only one patient with tubal pregnancy,but hematosalpinx and pelvic hematocele could be seen in MRI.Conclusion MRI is an effective modality for evaluating GS and its adjacent organs.The imaging features of GS and other indirect signs can be helpful to the diagnosis and differential diagnosis of ectopic pregnancy on MRI.更多还原