Normal position of the aqueduct of Sylvius
- 1 May 1975
- journal article
- Published by Journal of Neurosurgery Publishing Group (JNSPG) in Journal of Neurosurgery
- Vol. 42 (5) , 499-502
- https://doi.org/10.3171/jns.1975.42.5.0499
Abstract
The author describes a method for estimating the position of the aqueduct of Sylvius based on the ratio of the measured distance from surface to aqueduct (A) to that from the surface to dorsum sellae (B). The normal ratio A:B is 0.72 with a range from 0.68 to 0.75. Values below 0.68 indicate a dorsally displaced aqueduct.Keywords
This publication has 2 references indexed in Scilit:
- The Roentgenologic Appearance of the Aqueduct of SylviusActa Radiologica, 1953
- Radiology of the Third and Fourth Ventricles Part IIThe British Journal of Radiology, 1939