Objective To investigate the significance of ultrasonic performance of fetal ventricle anomalies in differential di⁃agnosis of abnormalities in central nervous system. Methods 92 cases of fetuses diagnosed with abnormalities in central nervous sys⁃tem were collected, all of whom underwent prenatal ultrasound examination in our hospital from January 2014 to May 2016. Ventricular abnormalities were retrospectively analyzed, and sonographic characteristics and associated deformity were summarized and analyzed. Results 92 fetuses cases with abnormalities in central nervous system were detected, consisting of 51 cases with absence of cavum septum pellucidum, 63 cases with lateral ventricle dilatation, 42 cases with the third ventricle dilatation, and 37 cases with the fourth ventricle dilatation. Conclusion Prenatal ultrasound can dynamically observe the development status of the central nervous system. Malformations in central nervous system can be diagnosed differentially by observing ventricle morphological changes.%目的：探讨胎儿脑室异常超声表现在中枢神经系统畸形中诊断和鉴别诊断的意义。方法收集自2014年1月－2016年5月在我院进行产前超声诊断中发现的92例胎儿中枢神经系统畸形，回顾性分析脑室异常改变，总结并分析其声像图改变特征及合并畸形情况。结果收集的产前超声诊断为中枢神经系统异常92例胎儿中透明隔腔缺如51例，侧脑室扩张63例，第三脑室扩张42例，第四脑室扩张37例。结论产前超声诊断可以动态检查中枢神经系统的发育情况，通过观察脑室形态改变可对中枢神经系统畸形进行诊断及鉴别诊断。
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