{
  "ptid_time": "021_S_5237_2015-07-15",
  "img_path": "/data/qiuhui/data/adni/images/021_S_5237/2015-07-15/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,715 mm³, 18.0% below the reference mean. With a Z-score of -1.55 (6.0th percentile), this represents moderate atrophy; whole brain volume measures 992,045 mm³, 3.6% below the reference mean. With a Z-score of -0.47 (31.8th percentile), this represents normal volume . ",
  "text_data": "Age is 82.3 years. Gender is Male. Education: 19 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows moderate atrophy (Z-score -1.55, 6th percentile), which is concerning for early neurodegeneration, but the whole brain volume is normal. Cognitive scores are borderline (MoCA 25/30), but MMSE is intact (30/30). APOE4 carrier status increases risk, but clinical symptoms are not yet pronounced.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (imaging suggests early neurodegeneration, but cognitive performance is not clearly impaired enough for dementia).",
  "timestamp": "2025-07-26T01:56:02.615293"
}