经颅超声观测新生儿小脑蚓部及其临床意义  

Application of transcranial ultrasonography in development of neonatal cerebellar vermis and its clinical significance

作　　者：陈晓康[1] 吕国荣 李敏[1] 陈泽坤[1] 林惠通[1] 

机构地区：[1]福建医科大学附属第二医院超声科,福州市362000 [2]泉州医学高等专科学校

出　　处：《临床超声医学杂志》2015年第6期392-394,共3页Journal of Clinical Ultrasound in Medicine

基　　金：福建省教委B类(JB12102);泉州市科技项目(2013Z101)

摘　　要：目的经颅超声观察新生儿小脑蚓部正中矢状切面的细微结构，建立蚓部的正常测值并评估小脑蚓部的发育情况。方法超声经前囟扫查196例（孕35—42周）单胎新生儿小脑蚓部，观察蚓部正中矢状切面的细微结构，测量并记录其长径、前后径、横径、周长及面积。结果小脑蚓部正中矢状切面可清晰显示小脑蚓部的9个分叶，其中原裂、次裂为细条状低回声，分叶内部为中低回声，分叶之间的裂为中强回声；正常新生儿小脑蚓部的长径、前后径、横径、周长及面积变化范围小，随孕周的增加而增大；小脑蚓部发育不全可合并枕大池、双侧脑室重度扩张。结论超声可以用来观察小脑蚓部正中矢状切面的细微结构，并能量化评价小脑蚓部发育情况。Objective To observe minute structures of neonatal cerebeUar vermis （CV） using transcranial ultrasonography and establish normal CV data,and thus to evaluate the CV development. Methods Totally 196 newborns between 35 to 42 gestational weeks were included in this study. The minute structures of CV in the median sagittal plane were observed by transcranial ultrasonography. The CV sizes including length,thickness,diameter,circumference and area were measured. Results Nine sublobes of CV could be displayed clearly in the median sagittal plane by transcranial ultrasonography. Primary fissure and secondary fissure were strip hypoechoic. Intralobar part was middle-hypoechoie. The fissures between sublobes were middle-hyperechoic. The variable ranges of length,thickness, diameter, circumference and area of normal neonatal CV were small. CV increased with increasing gestational weeks at prenatal examination. CV hypoplasia combined with severe expansion of cisterna magna and bilateral cerebral ventricles. Conclusion Uhrasonography can be used to observe minute structures of CV in the median sagittal plane and evaluate the development of CV quantitatively.

关 键 词：超声检查 小脑蚓部 新生儿 细微结构 

分 类 号：R445.1[医药卫生—影像医学与核医学]