Fetal Brain Ultrasound

"Gestational age, biparietal diameter and head circumference are measured. then 2 techniques are used according to the 2007 International Society of Ultrasound in Obstetrics and Gynecology guidelines for a US evaluation of the fetal central nervous system (CNS) (10) : 1- the axial transventricular technique including the posterior portions of the lateral ventricles, falx, CSP, and Frontal horn 2- the trans-cerebellar technique, including the cerebellum, cisternal magna, cerebellar peduncles, CSP, and FHs. CSP visualization and width, FH width, anterior horn width (AHW), center from the horn distance (CFHD), upside and downside measurement.~The corpus callosum is identified in the midsagittal plane. The image selected for CC measurement in addition to cerebellar vermis and cisterna magna"