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Normal Computed Tomographic Anatomy of the Cisterns and Cranial Nerves

  • C. Manelfe
  • A. Bonafé
Conference paper

Abstract

When one examines a routine CT scan, three facts are obvious : 1/the cisterns are — thanks to the low absorption values of the cerebrospinal fluid (CSF) — immediately visible ; 2/ intravenous injection of iodine contrast medium enhances the absorption values of the cistern vascular structures (basilar artery in the posterior fossa, polygone of Willis in the suprasellar cisterns, middle cerebral arteries in the sylvian fissures) ; 3/ posterior fossa cisterns are frequently the site of artifacts which prevent an accurate interpretation of the CT sections at this level ; this is due to their small size and their proximity to structures with different densities (petrous bone, mastoid cells) which induce partial volume effect. When compared with an anatomical section at the same level, it becomes evident that a routine CT scan leaves out several fine anatomical structures. For these reasons, a sharp delineation of the morphology of the cisterns in CT is only possible when they are dilated.

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References

  1. 1.
    Greitz, T., Hindmarsch, T.: Computer assisted tomography of intracranial CSF circulation using a water-soluble contrast medium. Acta. RAdiol. (Diagnosis) 15, 497–507 (1974)Google Scholar
  2. 2.
    Grepe, A., Greitz, T., Noren, G.: Computer cisternography of extracerebral tumours using lumbar injection of water soluble contrast medium. Acta Radiol. Suppl. 346, 51–62, (1975)PubMedGoogle Scholar
  3. 3.
    Drayer, B.P., Rosenbaum, A.E., Kenenrdell, J.S., Robinson, A.G., Bank, W.O., Deeb Z.L.: Computed tomographic diagnosis of suprasellar masses by intrathecal enhancement. Radiology, 123, 339–344(1977)PubMedGoogle Scholar
  4. 4.
    Manelfe, C, Guiraud, B., Espagno, J., Rascol, A.: Cisternographie computerised au Metrizamide, Revue Neurol. 134,471–484 (1978)Google Scholar
  5. 5.
    Grepe, A. Greitz, T.: C.A.T. investigation of the subarachnoid space. In: Computerised axial tomography in clinical practice. Ed. byG.H. du Boulay and I.F. Moseley, Springer-Verlag, Berlin Heidelberg New York, 24–28, (1977)CrossRefGoogle Scholar
  6. 6.
    Liliequist, B.: The subarachnoid cisterns. An anatomic and roentgenologic study. Acta Radiol. Suppl. 185, 1–108 (1959)Google Scholar
  7. 7.
    Amundsen, P., Newton, T.H.: Subarachnoid cisterns. In: Radiology of the skull and brain. Vol. 4 Ventricles and Cisterns, Ed. by T.H. Newton and D.G. Potts, The C.V. Mosby Company, Saint Louis, 104, 3588–3711 (1978)Google Scholar
  8. 8.
    Naidich, T.P., Pinto, R.S., Kushner, M.J., Lin, J.P., Kricheff, I.I., Leeds, N.E., Chase, N.E.: Evaluation of sellar and parasellar masses by computed tomography. Radiololy, 120,91–99 (1976)Google Scholar
  9. 9.
    Salamon, G., Huang, Y.P.: Radiologic Anatomy of the Brain, Berlin Heidelberg: Springer-Verlag (1976)Google Scholar
  10. 10.
    Strother, C. M., Sackett, J.F., Appen, R.E.: Anatomic considerations for computed tomography of the optic chiasm. Arch. Neurol. 34, 713–714 (1977)PubMedCrossRefGoogle Scholar
  11. 11.
    Grepe, A.: Anatomy of the cranial nerves in the basal cisterns. A radiologic post-mortem investigation. Acta Radiol.(Diagnosis) 16, 17–38 (1975)Google Scholar
  12. 12.
    Manelfe, C, Pasquini, U., Bank, W.O.: Metrizamide demonstration of the subarachnoid space surrounding the optic nerves. J. Comput. Assist. Tomogr. 2, 545–547 (1978)PubMedCrossRefGoogle Scholar
  13. 13.
    Sortland, O.: Computed tomography combined with gas cisternography for the diagnosis of expanding lesions in the cerebellopontine angle. Neuroradiology,18. 19–22, (1979)PubMedCrossRefGoogle Scholar
  14. 14.
    Kricheff, I.I., Pinto, R.S., Bergeron, R.T., Cohen, N.: CT — air cisternography and canalography in the diagnosis of small acoustic neuromas. Communication presented at the 17th. Annual Meeting of the American Society of Neuroradiology, Toronto, May 20-24 (1979)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1980

Authors and Affiliations

  • C. Manelfe
  • A. Bonafé

There are no affiliations available

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