中国中西医结合影像学杂志2012，Vol.10Issue(2)：109-111,3.DOI:10.3969/j.issn.1672-0512.2012.02.004
胎儿小脑蚓部发育的MRI研究
MRI assessment of fetal cerebellar vermis development
开治国 1王光彬 2张忠和3
作者信息
- 1. 山东省济南市第四人民医院,山东济南250031
- 2. 山东省医学影像学研究所,山东济南250021
- 3. 山东大学医学院,山东济南250012
- 折叠
摘要
Abstract
Objective: to measure the main dimensions of fetal cerebellar vermis and assess its development. To explore the MRI features of Dandy-Walker syndrome(DWS). Methods: 52 of the 63 fetal specimens(gestational age 15-40 weeks) scanned on a 3. 0T MR system met the inclusion criteria. The anterior posterior diameter(APD)of cerebellar vermis, the height of anterior vermis and posterior vermis were measured and analysed. The MRI findings of DWS(n = 6) confirmed by MRI scan were analyzed retrospectively. Results: APD and the height of anterior vermis and posterior vermis increased linearly with gestational age,the height of anterior vermis was greater than posterior vermis( P <0. 05) ,primary and infero-posterior fissure could be visualized on midsagittal T1 and T2weighted images. The main MRI findings of DWS were observed as follows: absence of the cerehellar vermis or partial agenesis of the separative cerebellar hemispheres,cystic dialation of the fourth ventricle communicating with enlargement of posterior fossa cyst. Conclusion; The development of fetal cerebellar vermis could be assessed by MRI after a gestational age of 17 weeks. There are characteristic MRI findings in the DWS and MRI scan is a valuable method for an early diagnosis of DWS.关键词
胎儿/小脑/磁共振成像/丹迪-沃克综合征Key words
fetals vermis/magnetic resonance imaging/Dandy-Walker syndrome分类
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开治国,王光彬,张忠和..胎儿小脑蚓部发育的MRI研究[J].中国中西医结合影像学杂志,2012,10(2):109-111,3.
