الفهرس 
Fetal GrowthOnly 14 pages are availabe for public view
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Abstract
The cerebellum consists of a midline part called the vermis and two lateral hemispheres. It’s roughly spherical but somewhat constricted in its median region and flattened, since cerebellum lies in the posterior cranial fossa, surrounded by the dense petrous ridges and the occipital bone so it can withstand deformation by extrinsic pressure better than the parietal bones. Measurement and demonstration of fetal cerebellum is a new and unique parameter of fetal brain growth and also useful in assessing gestational age and its easily visualized sonographically. The fetal cerebellum can be visualized with ultrasound easily therefore imaging the posterior fossa is becoming an integral part of many routine fetal sonogram. Measurement of the TCD can be done on most of the fetuses, irrespective of the fetal head shape. TCD in mm is equivalent to the gestational age in weeks after 20 weeks. The aim of this study is to evaluate the accuracy of using measurement of fetal Trans-cerebellar Diameter as an indicator of gestational age in comparison with other fetal biometric measurement in the third trimester