{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-08-21-004",
    "source_story_id": "tmp-story-alzheimer-continuum-positioning",
    "edition_id": "mp-2026-08-21-morning-0043",
    "edition_url": "https://themachinepress.com/edition/2026-08-21",
    "position": 4,
    "story_type": "dispatch",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "The Scan Moved Beyond a Diagnosis Box",
    "slug": "the-scan-moved-beyond-a-diagnosis-box",
    "dek": "A Bayesian model placed longitudinal brain images on a continuous Alzheimer’s disease trajectory with explicit uncertainty.",
    "summary": "A Bayesian model placed longitudinal brain images on a continuous Alzheimer’s disease trajectory with explicit uncertainty.",
    "body_text": "Disease Continuum Positioning integrates longitudinal diffusion-tensor imaging with weak clinical supervision to produce a probabilistic Disease Continuum Score. On the ADNI cohort, the authors report stronger performance than comparison progression methods, longitudinal consistency and predictive value for future conversion. The result is retrospective modeling on a research cohort, not a clinical diagnosis or validation for individual care.",
    "why_it_matters": "A Bayesian model placed longitudinal brain images on a continuous Alzheimer’s disease trajectory with explicit uncertainty.",
    "limitations": [
      "The result is retrospective modeling on a research cohort, not a clinical diagnosis or validation for individual care."
    ],
    "importance": 9,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-21-004/the-scan-moved-beyond-a-diagnosis-box",
    "json_url": "https://themachinepress.com/story/mp-2026-08-21-004.json",
    "first_published_at": "2026-08-21T09:00:00.000-04:00",
    "modified_at": "2026-08-21T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-08-21-004-001",
        "text": "A Bayesian model placed longitudinal brain images on a continuous Alzheimer’s disease trajectory with explicit uncertainty.",
        "source_ids": [
          "source-2026-08-21-004"
        ],
        "qualification": "The result is retrospective modeling on a research cohort, not a clinical diagnosis or validation for individual care."
      }
    ],
    "source_ids": [
      "source-2026-08-21-004"
    ],
    "tags": [
      "Alzheimer’s disease",
      "longitudinal imaging",
      "Bayesian learning"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-21-004",
      "title": "arXiv preprint 2608.19436",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.19436",
      "canonical_url": "https://arxiv.org/abs/2608.19436",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-08-18T20:00:00.000-04:00",
      "accessed_at": "2026-08-21T08:22:06.000-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-08-21-004-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "The Scan Moved Beyond a Diagnosis Box",
    "publisher": "The Machine Press",
    "published_at": "2026-08-21T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-21-004/the-scan-moved-beyond-a-diagnosis-box"
  }
}
