Abstract: A method for active electrode selection in a cochlear implant having an electrode array with a plurality of electrodes implanted in a cochlea of a living subject. The method includes estimating an activation region (AR) of each electrode based on its distance to nerve sites; presenting the AR in a visualization representation, wherein each electrode is represented by a bar having a width or length representing the AR; identifying electrodes having substantial AR overlap if the AR of one electrode overlaps substantially with the AR bar of another electrode; and selecting and deactivating at least one of the identified electrodes with substantial AR overlap.

Abstract: Systems and methods are provided for performing model-based cochlear implant programming (MOCIP) on a living subject with a cochlear implant (CI) to determine stimulation settings of a patient-customized electro-neural interface (ENI) model. The method includes: localizing an electrode array of the CI and intracochlear structures of the living subject to determine patient-specific electrode positions of the CI and a patient-specific anatomy shape; generating a CI electric field model based on the patient-specific electrodes positions of the CI and the patient-specific anatomy shape; and establishing an auditory nerve fiber (ANF) bundle model using the CI electric field model, and estimating neural health of the living subject using the ANF bundle model applications of the same.

Abstract: Systems and methods for performing current steering compatible image-guided cochlear implant (CI) electrode deactivation. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of a living subject. For each electrode, a corresponding distance-vs-frequency (DVF) curve is obtained. An analysis is performed on the DVF curves to identify the interfering electrodes, each having an interference with at least one other electrode. Then, rules may apply to the interfering electrodes in order to select one or more interfering electrodes to be deactivated. The rules may include: keeping the electrode having a corresponding DVF curve located at a left-most location on the plot to avoid a resulting sound frequency upshift; avoiding leaving any electrode stranded without a neighboring electrode; and deactivating a minimal number of the interfering electrodes to ensure that high interference is allowed only for each electrode with one neighboring electrode.

Abstract: One aspect of the invention provides a method for customizing cochlear implant stimulation of a living subject. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of the living subject. The method includes determining a position for each of the plurality of electrodes and spiral ganglion nerves that the electrode array stimulates, determining a geometric relationship between neural pathways within the cochlea and the electrode array implanted therein, and using one or more electrodes of the electrode array to stimulate a group of SG neural pathways of the cochlea based on the location of the one or more electrodes and their geometric relationship with the neural pathways.

Abstract: Systems and methods for performing current steering compatible image-guided cochlear implant (CI) electrode deactivation. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of a living subject. For each electrode, a corresponding distance-vs-frequency (DVF) curve is obtained. An analysis is performed on the DVF curves to identify the interfering electrodes, each having an interference with at least one other electrode. Then, rules may apply to the interfering electrodes in order to select one or more interfering electrodes to be deactivated. The rules may include: keeping the electrode having a corresponding DVF curve located at a left-most location on the plot to avoid a resulting sound frequency upshift; avoiding leaving any electrode stranded without a neighboring electrode; and deactivating a minimal number of the interfering electrodes to ensure that high interference is allowed only for each electrode with one neighboring electrode.

Abstract: One aspect of the invention provides a method for customizing cochlear implant stimulation of a living subject. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of the living subject. The method includes determining a position for each of the plurality of electrodes and spiral ganglion nerves that the electrode array stimulates, determining a geometric relationship between neural pathways within the cochlea and the electrode array implanted therein, and using one or more electrodes of the electrode array to stimulate a group of SG neural pathways of the cochlea based on the location of the one or more electrodes and their geometric relationship with the neural pathways.

Abstract: One aspect of the invention provides a method for customizing cochlear implant stimulation of a living subject. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of the living subject. The method includes determining a position for each of the plurality of electrodes and spiral ganglion nerves that the electrode array stimulates, determining a geometric relationship between neural pathways within the cochlea and the electrode array implanted therein, and using one or more electrodes of the electrode array to stimulate a group of SG neural pathways of the cochlea based on the location of the one or more electrodes and their geometric relationship with the neural pathways.

Abstract: One aspect of the invention provides a method for customizing cochlear implant stimulation of a living subject. The cochlear implant includes an electrode array having a plurality of electrodes implanted in a cochlea of the living subject. The method includes determining a position for each of the plurality of electrodes and spiral ganglion nerves that the electrode array stimulates, determining a geometric relationship between neural pathways within the cochlea and the electrode array implanted therein, and using one or more electrodes of the electrode array to stimulate a group of SG neural pathways of the cochlea based on the location of the one or more electrodes and their geometric relationship with the neural pathways.