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    "story_id": "mp-2026-11-03-004",
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    "headline": "One Implant Visit Supplies Its Own Reference",
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    "dek": "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.",
    "body_text": "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.",
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      "The reference is not direct tissue measurement, so the result supports screening research rather than a standalone diagnosis."
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    "tags": [
      "cochlear implants",
      "medical devices",
      "screening",
      "signal processing"
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      "source_id": "source-2026-11-03-004",
      "title": "arXiv preprint 2611.03644, original v1",
      "publisher": "arXiv",
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