Twin-twin transfusion syndrome: cerebral ischemia is not the only fetal MR imaging finding
Twin-twin transfusion syndrome: cerebral ischemia is not the only fetal MR imaging finding
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DOI：
10.1007/s00247-006-0337-5
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发表时间：
2007-01-01
影响因子：
2.3
通讯作者：
Racadio, Judy M.
中科院分区：
文献类型：
--
作者：
Kline-Fath, Beth M.;Calvo-Garcia, Maria A.;Racadio, Judy M.
双胎输血综合征（TTTS）是单绒毛膜双胎妊娠的一种并发症。胎盘早剥会导致血流失衡，导致双胞胎的发病率和死亡率都很高。虽然TTTS的超声表现是有据可查的，我们认为，MR成像是一个有价值的addictions.Objective我们描述的胎儿MRI表现与TTTS。材料和方法从2003年至2005年，连续37例多胎妊娠的MRI检查。在37例中，25例与TTTS一致，相关并经超声标准证实。结果超声不能显示的脑缺血，MR成像可以很好地显示。胎儿期MRI表现为双侧脑静脉窦增大，受体肾集合系统扩张，受体肺病变，供体脑畸形。结论MRI是TTTS的重要辅助检查手段。与超声波相比，它的优点是它对大脑病理的清晰定义，这对干预和咨询很重要。新的发现，特别是在尿路和脑静脉窦中，也有助于支持TTTS的诊断，并可能揭示TTTS中发生的血流动力学改变的其他后果。
Background Twin-twin transfusion syndrome (TTTS) is a complication of monochorionic/diamniotic twin pregnancies. An imbalance of blood flow occurs through placental anastomoses, causing potentially significant morbidity and mortality in both twins. Although the sonographic findings of TTTS are well documented, we believe that MR imaging is a valuable adjunct.Objective We describe the fetal MR imaging findings associated with TTTS.Materials and methods From 2003 to 2005, 37 consecutive MR imaging studies were performed on multiple-gestation pregnancies. Of the 37, 25 were consistent with TTTS, correlated and confirmed by sonographic criteria. MR fetal abnormalities were documented.Results Cerebral ischemia, which could not be demonstrated by sonography, was delineated well by MR imaging. New findings noted on fetal MR imaging were enlargement of cerebral venous sinuses in both twins, dilatation of the renal collecting system in the recipient, lung lesions in the recipient and cerebral malformations in the donor.Conclusion MR imaging is an important adjunct in TTTS imaging. Its benefit over sonography is its clear definition of cerebral pathology, which is important for intervention and counseling. The new findings, particularly in the urinary tract and cerebral venous sinuses, also help support the diagnosis of TTTS and might reveal additional consequences of the altered hemodynamics that occur in TTTS.