{
  "ptid_time": "037_S_0303_2013-05-02",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0303/2013-05-02/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,560 mm³, 12.7% below the reference mean. With a Z-score of -1.38 (8.3th percentile), this represents mild atrophy; whole brain volume measures 954,120 mm³, 4.7% below the reference mean. With a Z-score of -0.81 (20.9th percentile), this represents normal volume . ",
  "text_data": "Age is 91.2 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 19.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume shows mild atrophy (Z-score -1.38, 8.3th percentile), while whole brain volume is within normal limits. Cognitive scores (MMSE 29, MoCA 25) are borderline for MCI but still relatively preserved given age. APOE4 carrier status increases AD risk but does not confirm pathology.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (Cognitive scores are near-normal, but hippocampal atrophy suggests early neurodegeneration; age and APOE4 status add clinical suspicion.)",
  "timestamp": "2025-07-26T06:25:58.900255"
}