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超声观察胎儿大脑沟回发育及其临床意义
引用本文:陈晓康,林惠通,吕国荣.超声观察胎儿大脑沟回发育及其临床意义[J].中华超声影像学杂志,2009,18(2).
作者姓名:陈晓康  林惠通  吕国荣
作者单位:福建医科大学附属第二医院超声科,泉州,362000
摘    要:目的 探讨产前超声检测胎儿大脑沟回的发育过程及其临床意义.方法 经腹部超声观测692例孕19~39周胎儿大脑沟回(顶枕沟、距状沟、中央沟、扣带沟、扣带回、大脑外侧裂)发生、发展并测量其深度.结果 顶枕沟、距状沟、大脑外侧裂在19周左右可显示.中央沟在25周左右可显示.扣带沟、扣带回在26周左右可显示.1例24周胎儿顶枕沟、大脑外侧裂未见发育,考虑脑沟回发育迟缓;2例29周胎儿顶枕沟、中央沟末见发育,外侧裂发育呈圆钝状、深度变浅,考虑为脑沟凹发育迟缓.各大脑沟问深度与孕周均呈正相关(均P<0.05),各大脑沟回相对深度与孕周均呈负相关(均P<0.05).结论 经腹超声可观测到胎儿大脑沟回(顶枕沟、距状沟、中央沟、扣带回、大脑外侧裂)发生、发展,其深度与孕周相关,为产前早期评估大脑沟回发育异常如大脑发育迟缓、无脑回病提供依据.

关 键 词:超声检查  产前  胎儿  脑/生长和发育

Observation on the development of fetal cerebral sulci by prenatal ultrasound
CHEN Xiao-kang,LIN Hut-tong,L Guo-rong.Observation on the development of fetal cerebral sulci by prenatal ultrasound[J].Chinese Journal of Ultrasonography,2009,18(2).
Authors:CHEN Xiao-kang  LIN Hut-tong  L Guo-rong
Institution:CHEN Xiao-kang,LIN Hut-tong,L(U) Guo-rong
Abstract:Objective To evaluate the pattern of development of fetal cerebral sulei by prenatal ultrasound and its clinical significance. Methods Sixty hundred and ninety-two fetuses at age from 17 to 40 weeks were observed for the development and depth of cerebral sulci (parietal-occipital sulcus, calcarine suleus, central sulcus, eingulate sulcus, cingulate gyrus, and sylvian fissure) by transabdominal ultrasonography. Results Parietal-occipital sulcus,calcarine sulcus,and sylvian fissure were visible at about 19 weeks of gestation, central sulcus was at about 25 weeks, cingulate sulcus and cingulate gyrus were at about 26 weeks. One case of them was considered as cerebral sulei growth retardation due to the signs of invisible parietal-occipital sulcus and sylvian fissure at 24 weeks of gestation. Two cases were considered as cerebral sulci growth retardation due to the signs of invisible parietal occipital sulcus and central sulcus and the shallow blunt shape of sylvian fissure at 29 weeks of gestation. There were positive correlations between the depths of fetal cerebral sulci and gestational weeks, and negative correlations between their relative depths and gestational weeks(all P <0.05), Conclusions Transabdominal ultrasonography can be use to observe the development of fetal cerebral sulci (parietal-occipital sulcus, calcarine sulcus, central sulcus, eingulate sulcus,cingulate gyrus,and sylvian fissure). The depth of cerebral sulci is relative to gestational weeks,and would be considered for prenatal assessment of cerebral sulci maldevelopment, such as cerebral sulci growth retardation and lissencephalia.
Keywords:Ultrasonography  prenatal  Fetus  Brain/growth & development
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