2.2.5 Main outcomes measurements
The following measurements were calculated to validate our data and to
compare the dimensions of the IAC of a South African population to those
measured in literature:
- AP diameter at the base of the basal turn of the cochlea (APDB), i.e.
the distance between landmarks 1 and 3.
- AP diameter at the midpoint of the IAC (APDM), i.e. the distance
between landmarks 5 and 6.
- Opening diameter of the IAC, i.e. the distance between landmarks 2 and
4.
- Anterior length of the IAC, i.e., is the distance between landmarks 1
and 2.
- Posterior length of the IAC, i.e. the distance between landmarks 3 and
4.
Landmarks seven to ten were not used to make any measurements but they
are important for defining the shape of the IAC for 3D model generation.