摘要
目的：探讨产前超声及MRI在诊断胎儿颅后窝异常中的应用价值及临床意义。方法：对2011年1月—2012年12月于我院行超声检查拟诊胎儿颅后窝异常者进行回顾性分析，随访其产前超声表现、MRI检查结果、妊娠结局及产后影像学资料。结果：研究期间超声检出胎儿颅后窝异常并同时进行MRI检查共27例，其中18例（66.7%）MRI证实了超声诊断，另9例MRI显示胎儿颅后窝结构正常，产后随访亦未见异常。其中11例活产，10例进行了产后MRI检查，其中5例（50%）产前、产后MRI结果完全相符，2例（20%）两者诊断不相符，另3例（30%）产后MRI补充了新的诊断。结论：产前超声对发现胎儿颅后窝异常有重要的临床意义，MRI对病变的显示效果及诊断符合率较超声更精确，可作为重要的验证和补充诊断手段，但应重视产后的影像学随访观察。
Abstract
Objective: To investigate the role of combined ultrasound and MRI in the prenatal diagnosis of fetal posterior fossa anomalies and to verify its clinical value. Methods: The imaging data of cases suspected of fetal posterior fossa anomalies by prenatal ultrasound in our hospital were analyzed retrospectively from January 2011 to December 2012. We reviewed prenatal ultrasonography, MRI imaging, and outcome of all the cases after delivery as well as early postnatal imaging studies. Results: 27 cases suspected of fetal posterior fossa anomalies by fetal sonography underwent MRI examination during the study period. 9 were found to have normal posterior fossa structures by fetal MRI. In the remaining 18 cases(66.7%), posterior fossa abnormalities suspected by fetal sonography were confirmed by fetal MRI, of which 11 were live-born and 10 underwent postnatal MRI. There was complete agreement in fetal and postnatal MRI diagnoses in 5 infants (50%). In 2 cases (20%) fetal and postnatal MRI diagnoses disagreed and postnatal MRI revealed additional anomalies in 3 cases(30%). Conclusion: Ultrasonography is an effective method for prenatal identification of fetal posterior fossa anomalies. Antenatal MRI serves to confirm the sonographic findings as well as offering additional diagnostic information. However, postnatal MRI follow-up should be strongly emphasized.
关键词
胎儿疾病 /
超声检查 /
产前 /
磁共振成像
Key words
Fetal diseases /
Ultrasonography /
prenatal /
Magnetic resonance imaging
张 波;杨太珠;罗 红.
产前超声联合MRI诊断胎儿颅后窝异常[J]. 中国临床医学影像杂志. 2015, 26(2): 111-113
ZHANG Bo;YANG Tai-zhu;LUO Hong.
Combination of ultrasound and MRI in the diagnosis of fetal posterior fossa anomalies[J]. Journal of China Clinic Medical Imaging. 2015, 26(2): 111-113
中图分类号：
Ｒ714.53
Ｒ445.1
Ｒ445.2
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