Individual Optimization of the Insertion of a Preformed Cochlear Implant Electrode Array

Figure 6

Principal procedure involved in transforming the three-dimensional geometric model of the cochlea into a two-dimensional one. A cutting plane, rotated around the central axis (modiolus), provides stepwise visualization of the cross sections. In each cross section, a point on the outer contour (red) and a second one on the inner contour (green) were manually marked. After perpendicular projection onto a common plane, the points in their totality described the geometry of the inner ear in a 2D manner.

(a)

(b)

(c)