A Novel Capacitive Cochlear Implant Electrode Array Sensing System to Discriminate Fold-over Pattern
| Autor: | Hou, L, Du, X, Boulgouris, N, Hafeez, N, Coulson, C, Irving, R, Begg, C, Brett, P |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
surgical assistance
Capacitive sensing medicine.medical_treatment medical robotics 03 medical and health sciences 0302 clinical medicine hearing preservation Cochlear implant Electrode array Medicine 030223 otorhinolaryngology Surgical assistance Hearing preservation capacitive sensing business.industry food and beverages Cochlear Implantation Sensory Systems Cochlea Electrodes Implanted Cochlear Implants Otorhinolaryngology Medical robotics Neurology (clinical) business Sensing system 030217 neurology & neurosurgery Biomedical engineering K-Nearest Neighbors analysis (KNN) |
| Popis: | The research is to propose a sensing system to ensure the electrode array being correctly placed inside the cochlea. Instead of applying extra sensors to the array, the capacitive information from multiple points of the array is gathered and analyzed to determine the state and behavior of the electrode array.The sensing system measures electrode bipolar capacitances between multiple pairs of electrodes during the insertion. The principal component analysis (PCA) method is then applied to analysis the recorded data to discriminate insertion patterns.In total, 384 capacitance profiles from electrode pair (1, 2), and electrode pair (15, 16) were analyzed and compared. In an account of both the electrode pairs, the threshold distance was examined to be d = 1.99 at the average comparison type. The experiment results showed the success rate is over 80% to identify buckling during the insertion on a 2D cochlear model.This early-stage investigation shows great potential compared with the current practice, which does not provide any feedback to surgeons. The system demonstrates the feasibility of a sensing method for auto-reoccupation electrodes behavior, and it will help surgeons to avoid misplacement of the electrode array inside the cochlea. |
| Databáze: | OpenAIRE |
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