{
  "ptid_time": "941_S_5124_2014-04-21",
  "img_path": "/data/qiuhui/data/adni/images/941_S_5124/2014-04-21/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 4,556 mm³, 36.0% below the reference mean. With a Z-score of -3.30 (0.0th percentile), this represents profound atrophy. ",
  "text_data": "Age is 77.7 years. Gender is Female. Education: 20 years. MMSE: 26.0. MoCA: 25.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows profound atrophy (Z-score -3.30, 0.0th percentile), which is strongly associated with Alzheimer's pathology. However, cognitive scores (MMSE 26, MoCA 25) remain in the normal range, suggesting preserved function despite structural decline.  \nDiagnosis: **MCI** (structural changes precede cognitive decline in Alzheimer's trajectory)  \nConfidence: **Medium** (cognitive scores are borderline, and APOE4-negative status reduces certainty)",
  "timestamp": "2025-07-26T17:43:18.544360"
}