Thorp J M, Councell R B, Sandridge D A, Wiest H H
Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill.
Obstet Gynecol. 1992 Sep;80(3 Pt 2):506-8.
Placenta previa percreta is a rare but highly morbid condition usually diagnosed intraoperatively. Placental manipulation results in severe bleeding. Magnetic resonance imaging (MRI) might allow antepartum diagnosis of this condition.
A multiparous woman with five previous abdominal deliveries had complete placenta previa diagnosed at 16 weeks' gestation. Bleeding ensured at 29 weeks and she was managed with bed rest. Before planned abdominal delivery, MRI was performed and placenta percreta was diagnosed, which allowed her physician to avoid placental manipulation. Hysterectomy was accomplished with an estimated blood loss of only 2000 mL.
Antepartum diagnosis of placenta previa percreta by MRI altered the usual diagnostic and surgical approach, diminishing blood loss and morbidity.
穿透性前置胎盘是一种罕见但高风险的疾病，通常在术中诊断。胎盘操作会导致严重出血。磁共振成像（MRI）可能有助于产前诊断这种疾病。
一名有五次剖宫产史的经产妇在妊娠16周时被诊断为完全性前置胎盘。在29周时出现出血，她接受了卧床休息治疗。在计划剖宫产之前，进行了MRI检查，诊断为穿透性胎盘，这使她的医生避免了胎盘操作。子宫切除术中估计失血仅2000毫升。
通过MRI对穿透性前置胎盘进行产前诊断改变了常规的诊断和手术方法，减少了失血和发病率。
