Simulation for Training Cochlear Implant Electrode Insertion

Cochlear implant surgery is performed to restore hearing in patients with a range of hearing disorders. To optimise hearing outcomes, trauma during the insertion of a cochlear implant electrode has to be minimised. Factors that contribute to the degree of trauma caused during surgery include: the location of the electrode, type of electrode, and the competence level of the surgeon. Surgical competence depends on knowledge of anatomy and experience in a range of situations, along with technical skills. Thus, during training, a surgeon should be exposed to a range of anatomical variations, where he/she can learn and practice the intricacies of the surgical procedure, as well as explore different implant options and consequences thereof. Virtual reality simulation offers a versatile platform on which such training can be conducted. In this paper, we discuss a prototype implementation for the visualisation and analysis of electrode trajectories in relation to anatomical variation, prior to its inclusion in a virtual reality training module for cochlear implant surgery.