TY - JOUR T1 - Sonographic Imaging of the Glycogen Stage of the Fetal Choroid Plexus JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 345 LP - 347 VL - 2 IS - 4 AU - Michael Crade AU - Jagdish Patel AU - Dennis McQuown Y1 - 1981/07/01 UR - http://www.ajnr.org/content/2/4/345.abstract N2 - At 8–22 weeks gestation, the lateral ventricular choroid plexus swells with glycogen deposits, which are thought to be an important source of anaerobic energy for a relatively hypovascular stage of brain development. Sonographic images during this phase demonstrate enlarged and echogenic ventricles, accounting for up to 80%–90% of the cerebral axial dimension in the earliest gestations studied. This increased echogenicity may be due to these glycogen stores. Because a rapid but sonographically definable decrease in the relative size of these structures occurs, routine imaging for the presence and character of the choroid plexus might prove to be a useful parameter in fetal examination. ER -