Research Article

Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation

Figure 1

Landmark identification of a right human cochlea using cone beam CT data. (a) Oblique axial slice corresponding to the 0° reference plane (red line in (b), as defined in [18]). The RW center adjacent to the bony overhang (R), the inner wall border at the RW (I), the center of the modiolus in the basal turn (C), and the apical center of the modiolus (A) are used to define a local cochlear coordinate system for further computations. (b) Oblique coronal slice of the basal turn (blue line in a) and corresponding in-plane landmark positions.
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(a)
596498.fig.001b
(b)