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首页> 外文期刊>Radiology >Fetal bifid sacrum artifact: normal developmental anatomy simulating malformation.
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Fetal bifid sacrum artifact: normal developmental anatomy simulating malformation.

机译：胎儿双fi骨伪影：模拟畸形的正常发育解剖。

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PURPOSE: To determine the clinical importance and origin of a bifid configuration of the fetal sacrum seen during routine fetal sonography. MATERIALS AND METHODS: An apparent bifid malformation of the sacral spine was seen in 24 fetuses at antenatal sonography. An attempt was made to recreate this configuration prospectively in 111 consecutive second- and third-trimester fetuses. Three cadavers were also imaged to determine the origin of this configuration. RESULTS: Outcome information was available for 22 of the 24 fetuses; all fetuses were normal. In the prospective study, the bifid sacrum configuration was recreated in 75 of the 111 fetuses studied. The configuration could never be produced earlier than 20 weeks gestational age, was seen in some fetuses at 20-25 weeks, and could always be seen after 25 weeks. Findings from imaging studies of the three cadavers revealed that this configuration was dependent on the demonstration of the alar ossification centers of the sacral vertebra. CONCLUSION: The bifid sacrum artifact is a skewed representation of normal anatomy and should not be interpreted as a true anomaly.
机译：目的：确定在常规胎儿超声检查中发现的胎儿骨的双歧构型的临床重要性和起源。材料与方法：在产前超声检查中，在24例胎儿中发现An骨脊柱出现明显的双歧畸形。试图在111个连续的妊娠中期和晚期妊娠中重新建立这种构型。还对三个尸体成像以确定此配置的来源。结果：24例胎儿中有22例可获得结果信息。所有胎儿均正常。在前瞻性研究中，在研究的111例胎儿中有75例重建了双fi骨结构。这种配置永远不会在胎龄20周之前产生，在某些胎儿20-25周时才能看到，并且在25周后总能看到。对三个尸体进行影像学研究的结果表明，这种结构取决于the骨椎骨骨化中心的显示。结论：bi骨假体是正常解剖结构的歪斜表示，不应被解释为真正的异常。

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