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2005, Number 1

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Anales de Radiología México 2005; 4 (1)

Radiologic Anatomy of the Subarachnoid Space:

Roldán VE, Osorio PS, Facha MT, Martínez LM, Taboada BJ

Language: Spanish
References: 17
Page: 27-34
PDF size: 260.32 Kb.


ABSTRACT

Introduction: Encephalon cisterns constitute a of cephalorrhachidea liquid reservoir with a greater volume than that one of the ventricles; they contain blood vessels and venous structures; they are continual with each others and they communicate with the ventricular system through the medium and lateral holes, located in the fourth ventricle.
Material and method: The magnetic resonance (MR) avoids invasive procedures by means of sequences that allow to observe the cephalorrhachidean liquid without contrast, for example the T2-P and the FIESTA sequence. The neumocisternography and the injection of hydrosoluble medium into the subarachnoid space have became obsolete.
Results and remarks: We describe the 15 more important cisterns of the subarachnoid space, classifying them in four groups: I. Posterior fossa (1. Bulbar, 2. Protuberance or pontine, 3. Magna, 4. Ponto cerebellar, 5. Superior cerebellar or vermiana). II. Perimesencephalic (6. Interpeduncular, 7. Crural, 8. Ambiens, 9. Cuadrigeminal). III. (10. Retrothalamic, 11. Interposed veil, 12. Of the callosum body). IV Suprasellar (13. chiasmatic, 14. Terminal Lamina, 15. Sylvian).
Conclusions:This revision shows in didactic form the basic information that is to remember of each cistern (content and anatomical relation with the rest of the encephalic structures), supported of schemes, images of TC and MR.


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