research
One Implant Visit Supplies Its Own Reference
An apically fitted patient-specific model flags signs of tissue growth around cochlear-implant electrodes without needing the intra-operative baseline.
Summary
An apically fitted patient-specific model flags signs of tissue growth around cochlear-implant electrodes without needing the intra-operative baseline.
Tissue growth can raise cochlear-implant electrode impedance while remaining hard to see on CT. The proposed screen fits a patient-specific forward model to the relatively unaffected apical contacts and uses that fit to predict basal electrical measurements. Two adjacent basal contacts must cross a preset misfit threshold for a flag. Against persistent multi-visit electrical change used as a surrogate reference, the method agreed in 81 percent of 68 ears, with 71 percent sensitivity and 86 percent specificity; growth-free ears produced a 3 percent false-positive rate. The reference is not direct tissue measurement, so the result supports screening research rather than a standalone diagnosis.
Why it matters
An apically fitted patient-specific model flags signs of tissue growth around cochlear-implant electrodes without needing the intra-operative baseline.
Limits and context
- The reference is not direct tissue measurement, so the result supports screening research rather than a standalone diagnosis.
Key claims
An apically fitted patient-specific model flags signs of tissue growth around cochlear-implant electrodes without needing the intra-operative baseline.
Qualification: The reference is not direct tissue measurement, so the result supports screening research rather than a standalone diagnosis.
Evidence: source-2026-11-03-004
Sources
- arXiv preprint 2611.03644, original v1arXiv · primary research
Corrections
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