{
  "ptid_time": "053_S_4661_2013-06-12",
  "img_path": "/data/qiuhui/data/adni/images/053_S_4661/2013-06-12/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,394 mm³, 15.4% below the reference mean. With a Z-score of -1.50 (6.6th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 74.6 years. Gender is Male. Education: 18 years. MMSE: 27.0. MoCA: 20.0. Logical Memory: 4.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows moderate atrophy (Z-score -1.50, 6.6th percentile), which is concerning for neurodegeneration. The MMSE is normal (27/30), but the MoCA (20/30) suggests mild cognitive impairment, particularly in executive function or memory domains. APOE4 positivity increases Alzheimer's risk.  \n\nDiagnosis: **MCI** (likely amnestic subtype given hippocampal atrophy)  \nConfidence: **Medium** (MoCA supports MCI, but MMSE is normal; imaging supports neurodegeneration but not severe enough for dementia)",
  "timestamp": "2025-07-26T08:00:07.191043"
}