PT - JOURNAL ARTICLE AU - Michel E. Mawad AU - A. John Silver AU - Sadek K. Hilal AU - S. Ramaiah Ganti TI - Computed Tomography of the Brain Stem with Intrathecal Metrizamide. Part I: The Normal Brain Stem DP - 1983 Jan 01 TA - American Journal of Neuroradiology PG - 1--11 VI - 4 IP - 1 4099 - http://www.ajnr.org/content/4/1/1.short 4100 - http://www.ajnr.org/content/4/1/1.full SO - Am. J. Neuroradiol.1983 Jan 01; 4 AB - Detailed anatomy of the brain stem and cervicomedullary junction can be accurately demonstrated with metrizamide computed tomographic cisternography. Specifically. surface anatomy is unusually well outlined. Nine distinct and easily recognizable levels of section are described: four levels in the medulla, three in the pons, and two in the mesencephalon. Surface features of the brain stem, fine details in the floor of the fourth ventricle, cranial nerves, and vascular structures are shown and discussed.