子宫切口妊娠的MRI表现  

MRI features of cesarean scar pregnancy

作　　者：潘志立[1] 吕维富[1] 刘影[1] 

机构地区：[1]安徽医科大学附属省立医院影像科,安徽合肥230001

出　　处：《医学影像学杂志》2014年第7期1203-1206,共4页Journal of Medical Imaging

摘　　要：目的探讨剖宫产后子宫切口妊娠(cesarean scar pregnancy,CSP)的MRI表现及诊断价值。方法回顾性分析8例经手术病理证实的子宫切口妊娠患者的MRI表现,将MRI影像表现与手术及病理结果进行比较,总结其MRI特点。结果 8例子宫切口妊娠MRI均清楚显示孕囊,位于子宫峡部前壁切口瘢痕处,孕囊向子宫肌层浸润同时向宫腔内生长,局部子宫峡部前壁明显变薄。其中7例孕囊为圆形或椭圆形,呈T1WI低信号、T2WI高信号囊状信号特征,囊壁光滑。其中1例孕囊表现为包块影,形态欠规则,T1WI上呈等信号,T2WI呈混杂信号,包块内及宫腔内见少量积血。结论子宫切口妊娠MRI表现具有一定特点,对临床早期明确诊断及治疗具有重要价值。Objective To investigate the MRI features and diagnostic value of cesarean scar pregnancy（CSP）.Methods The retrospective analysis was performed on 8cases with the MRI features of CSP proved by operation and pathology,and comparison was made between the MRI findings and surgical results.Results All gestational sacs（8）located at the lower anterior uterus were clearly displayed by MRI.Gestational sac was found partially within the myometrium with extension into the uterine cavity.The anteior wall of isthmus uteri became thinner.In the 7of the 8cases,gestational sac presented as round or oval with smooth margin,the mass was shown homogeneous hypointensity on T1 WI and hyperintensity on T2 WI.In the remaining 1of the 8cases,gestational sac was shown as irregular mass,which showed isointensity on T1 WI and heterogeneous intensity on T2 WI.A small amount of hemorrhage within the cystic mass and uterus cavity can be seen.Conclusion CSP has its specific features on MRI.Theses specific features can provide useful information in the dignosis and treatment of CSP.

关 键 词：异位妊娠 剖宫产术 磁共振成像 

分 类 号：R714.22[医药卫生—妇产科学] R445.2[医药卫生—临床医学]