فهرست نشریات علمی دسترسی آزاد ایران

Background: Evaluation of the cerebellum and vermis is one of the integral parts of the fetal cranial anomaly screening. Objectives: The aim of this study was to create a nomogram for fetal vermis measurements between 17 and 30 gestational weeks. Results: Optimal median planes were obtained in 117 of the cases. Vermian diameters as a function of gestational age were expressed by regression equations and the correlation coefficients were found to be highly statistically significant (P < 0.001). The normal mean (± standard deviation) for each gestational week was also defined. Conclusion: This study presents the normal range of the two-dimensional fetal vermian measurements between 17 and 30 gestational weeks. In the absence of a three-dimensional ultrasonography, two-dimensional ultrasonography could also be used confidently with more time and effort.