1980 Volume 83 Issue 6 Pages 654-656
One hundred sixteen human temporal bones were used for this study. They were classified into six groups radiologically, according to the development of the pneumatization by Schuller's projection.
The length of the external aperture of the vestibular aqueduct (VA) was measured to evaluate the development of the funnel-shaped enlargement at the distal VA.
The relationship between the pneumatization and the length of the external aperture of the VA was studied statistically.
The temporal bone with well-developed pneumatization has a tendency to have a large external aperture of the VA.
We can estimate both sizes of the VA and the endolymphatic sac in accordance with developmental grade of the pneumatization.
