A, Transvaginal median sagittal plane demonstrating the intracranial anatomy. B, Transabdominal median plane with the pertinent anatomy labeled. C, Color Doppler reveals the pericallosal artery (arrow). D, Transventricular planes demonstrating the echogenic CP; the anechoic LV and the interhemispheric fissure (arrow) divide the brain into the right and left hemispheres.
4V, fourth ventricle; BS, brainstem; CM, cisterna magna; CP, choroid plexus; LV, lateral ventricle; M, mandible; NB, nasal bone; NT, nuchal translucency; P, palate.
SMFM. SMFM Anomalies Consult Series #3. Am J Obstet Gynecol 2020.