Pediatric Radiology

, Volume 4, Issue 4, pp 221–222 | Cite as

Normal position of the aqueduct of sylvius in infancy

  • K. G. Krogness


Using pneumo-encephalographic measurements the author describes the ratio A: B method for determination of the normal position of the cerebral aqueduct in the age group 0 to 22 month, based on the measured distance from skull surface to aqueduct (A) and that from the skull surface to dorsum sellae (B). Normal value of the ratio A: B was 0.72±0.02. Compared with earlier investigations on the same topic in the age group 2 to 62 years, identical normal values were calculated. Thus the A: B method is independent of the age and the skull dimensions.

Key words

Aqueduct of Sylvius posterior fossa measurements craniometry 


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    Sahlstedt, H.: In: Lysholm, E., The Ventriculogram. Part I. Roentgen technique. Acta Radiol. SupplXXV, 1 (1937).Google Scholar
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    Twining, E. W.: Radiology of the third and fourth ventricles. Brit. J. Radiol.12, 569 (1939)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • K. G. Krogness
    • 1
  1. 1.Department of Radiology and NeurosurgeryUniversity of BergenBergenNorway

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