Surgical and Radiologic Anatomy

, Volume 18, Issue 3, pp 201–207 | Cite as

The veins of the medulla oblongata: MRI cross-sectional anatomy

  • M. Braun
  • S. Bracard
  • R. Anxionnat
  • J. Roland
  • L. Picard
Radiologic Anatomy
  • 60 Downloads

Summary

Magnetic resonance imaging (MRI) has progressively become the major or even the only imaging procedure for displaying the vascular relationships of the brainstem in the context of infra-tentorial lesions. In order to assess the MR sectional anatomy of the bulbar vv. 40 normal patients were examined in the MR axial, frontal and sagittal planes after gadolinium IV injection. The bulbar venous networks were inconstantly visualised: anterior vv. (16%). posterior (3%), lateral (8%). The vein of the lateral recess of the fourth ventricle was constant in the three planes; the inferior petrosal sinus could be seen in 82% of cases. Their relation with the posterior fossa structures are emphasised and discussed.

Key words

Anatomy MRI Medulla oblongata Veins Contrast medium 

Les veines de la medulla oblongata: anatomie sectionnelle en IRM

Résumé

L'imagerie par résonance magnétique (IRM) est progressivement devenue la principale méthode d'imagerie des lésions infra-tentorielles. Afin d'étudier l'aspects en IRM des vv. bulbaires, nous avons réalisé une étude prospective de 40 patients normaux explorés en coupes axiales et frontales en IRM après injection intraveineuse de Gadolinium. Les vv. de la medulla oblongata ont été inconstamment visibles: antérieures (16 %), postérieures (3 %) latérales (8 %); en revanche la v. du récessus latéral du IVème ventricule l'est constamment et dans les trois plans; le sinus pétreux inférieur est visible en IRM dans 82% des cas. Leurs critères d'identification sont discutés puisqu'ils constituent l'origine des principaux collecteurs veineux du tronc cérébral. Leurs rapports avec les structures de la fosse postérieure ont été soulignés et discutés.

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • M. Braun
    • 1
    • 2
  • S. Bracard
    • 2
  • R. Anxionnat
    • 2
  • J. Roland
    • 1
  • L. Picard
    • 2
  1. 1.Faculty of Medicine, Department of AnatomyUniversity Henri PoincaréVandoeuvre-les-NancyFrance
  2. 2.Department of NeuroradiologyUniversity Hospital, Hôpital Saint JulienNancyFrance

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