TY - JOUR AU - Cavalheiro, Sérgio AB - Childs Nerv Syst (2015) 31:729–733 DOI 10.1007/s00381-015-2621-x ORIGINAL PAPER The occipitum–dens line: the purpose of a new ultrasonographic landmark in the evaluation of the relationship between the foetal posterior fossa structures and foramen magnum Enoch Quinderé de Sá Barreto & Antonio Fernandes Moron & Hérbene José Figuinha Milani & Wagner Jou Hisaba & Luciano Marcondes Machado Nardozza & Edward Araujo Júnior & Sérgio Cavalheiro Received: 5 November 2014 /Accepted: 2 February 2015 /Published online: 21 February 2015 Springer-Verlag Berlin Heidelberg 2015 . . Abstract Keywords Foetus Occipitum–dens line New . . Purpose The aims of this study were to describe a new ultra- ultrasonographic landmark Posterior fossa malformations sonographic technique to assess the normal level of the cere- Myelomeningocele bellum and the brainstem in the posterior fossa in normal foetuses and to compare in pathologic cases. Methods We propose a new line cross between the dens cer- vical and the inferior portion of occipitum (occipitum–dens line—ODL). In a cross-sectional study, a single observer with Introduction experience in foetal neurosonography evaluated 54 foetuses (40 normal and 14 with open neural tube defect) between 20 The normal anatomic structures of the posterior fossa and its and 28 weeks of gestation. The TI - The occipitum–dens line: the purpose of a new ultrasonographic landmark in the evaluation of the relationship between the foetal posterior fossa structures and foramen magnum JF - Child's Nervous System DO - 10.1007/s00381-015-2621-x DA - 2015-02-21 UR - https://www.deepdyve.com/lp/springer-journals/the-occipitum-dens-line-the-purpose-of-a-new-ultrasonographic-landmark-Ii63aid4ef SP - 729 EP - 733 VL - 31 IS - 5 DP - DeepDyve ER -