胎儿期第五、六脑室扩张的超声诊断和临床意义

Ultrasound diagnosis and clinical significance of fetal expansion of carum septum pellucidum and carum vergae

目的分析胎儿第五、六脑室扩张的超声表现及其临床结果 ,探讨第五、六脑室扩张在产前遗传咨询及新生儿预后的临床意义。方法对孕中晚期胎儿常规探测第五、第六脑室,对存在脑室扩张胎儿进行系统的产前超声检查,建议行胎儿染色体及病毒学检查,产后行新生儿头颅超声检查,定期随访。结果本次研究的胎儿第五、第六脑室扩张孕妇共95例,发生率为0.86%,其中单纯第五脑室扩张52例,单纯第六脑室扩张17例,合并第五、第六脑室扩张26例。脑室扩张部位以及扩张程度与围生期结局无明显关系(P<0.05),但产后脑室扩张恢复正常的正常围生儿例数显著高于脑室扩张程度增加的正常围生儿例数(P>0.05)。结论胎儿期第五、第六脑室扩张这一超声征象在产前超声检查中应引起足够的重视。

Objective To explore the ultrasound diagnosis and clinical significance of fetal expansion of carum septum pellucidum and carum vergae.Methods Conventional ultrasound detection of expansion of carum septum pellucidum and carum vergae were performed during second and third trimester.Fetal with carum septum pellucidum and carum vergae expansion was recommended to perform fetal chromosomal and virological tests,neonatal cranial ultrasound and regular follow-up.Results The total of 95 cases of fetal were determined the expansion of carum septum pellucidum and carum vergae and the incidence rate of ventricle expansion was 0.86%,of which only carum septum pellucidum expansion of 52 cases,only carum vergae expansion of 17 cases and the combined expansion of 26 cases.No significant relationship of the site and degree of ventricle expansion and prenatal outcome was found（P〈0.05）,but the number of normal perinatal with the restoration of ventricle expansion after postnatal was significant higher than those of increase of ventricle expansion after postanal（P〈0.05）.Conclusion Much attention should be taken to fetal expansion of carum septum pellucidum and carum vergae in prenatal ultrasound examination.