| 未成熟儿与足月新生儿脑发育的对照分析 |
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| 引用本文： | 孙多成,杨春晖,李福彰,陈传明,谢景盼,阮燕斯. 未成熟儿与足月新生儿脑发育的对照分析[J]. 中国妇幼保健, 2010, 25(5) |
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| 作者姓名： | 孙多成 杨春晖 李福彰 陈传明 谢景盼 阮燕斯 |
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| 作者单位： | 1. 南方医科大学附属中山博爱医院影像中心,广东,中山,528403
2. 南方医科大学附属中山博爱医院新生儿科 |
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| 基金项目： | 中山市科技计划资助项目〔20071A066〕 |
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| 摘 要： | 目的:探讨未成熟儿新生儿期与纠正胎龄足月时脑发育变化及其MRI影像学特点,并与足月新生儿进行对照。方法:对30例29~36周未成熟儿,在新生儿期及纠正胎龄40周行MRI检查,并与生后7天内的足月新生儿进行对照。结果:未成熟儿脑白质T1Flair序列低信号,T2WI序列高信号,T2Flair序列等信号,DWI无异常信号;29~36周胎龄未成熟儿延髓、桥脑背侧、小脑脚、1/2中脑背侧、内囊后肢、丘脑腹外侧核处髓鞘在T1Flair序列清晰可见,T1Flair序列高信号,T2WI序列低信号;35周以上未成熟儿脑回成熟度完全接近纠正足月胎龄期,但皮质薄;脑神经垂体与腺垂体刚出生时T1Flair序列为极高信号,纠正胎龄足月期变成等信号,高度由2 mm发育至3 mm;胼胝体在未成熟期与纠正胎龄足月期均为等信号(与脑灰质比较),厚度由1 mm发育至2~3 mm。结论:MRI对未成熟儿脑部髓鞘发育及结构显示清楚,未成熟儿纠正足月胎龄期与足月新生儿脑发育无明显差异。
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| 关 键 词： | 未成熟儿 脑发育 磁共振成像 弥散加权成像 |
Comparative analysis of brain development between premature infants and full-term neonates |
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| SUN Duo-Cheng,YANG Chun-Hui,LI Fu-Zhang et al. Comparative analysis of brain development between premature infants and full-term neonates[J]. Maternal and Child Health Care of China, 2010, 25(5) |
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| Authors: | SUN Duo-Cheng YANG Chun-Hui LI Fu-Zhang et al |
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| Affiliation: | SUN Duo-Cheng,YANG Chun-Hui,LI Fu-Zhang et al.Center of Imaging,Boai Hospital Affiliated to Southern Medical University,Zhongshan 528403,Guangdong,China |
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| Abstract: | Objective:To explore the changes of brain development and MRI imaging features between premature infants and full-term neonates.Methods:30 premature infants of 29~36 weeks underwent MRI examination in neonatal period and the fortieth weeks after correcting gestational age,then the results were compared to full-term neonates within 7 days after birth.Results:T1 Flair low signal,T2WI high signal,T2 Flair isointense signal and DWI of no abnormal signal were detected in brain white matter of premature infants;c... |
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| Keywords: | Premature infants Brain development Magnetic resonance imaging Diffusion weighted imaging |
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