{
  "ptid_time": "031_S_1066_2007-12-14",
  "img_path": "/data/qiuhui/data/adni/images/031_S_1066/2007-12-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,832 mm³, 0.8% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; whole brain volume measures 885,067 mm³, 18.0% below the reference mean. With a Z-score of -2.34 (1.0th percentile), this represents significant atrophy. ",
  "text_data": "Age is 73.4 years. Gender is Male. Education: 13 years. MMSE: 26.0. Logical Memory: 2.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows significant whole brain atrophy (Z-score -2.34, 1st percentile) despite normal ventricular volume, which is concerning for neurodegenerative changes. The MMSE score of 26 is borderline, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: **MCI** (mild cognitive impairment)  \nConfidence: **Medium** (brain atrophy is severe, but MMSE is only mildly reduced; APOE4 status supports Alzheimer's pathology but doesn't confirm dementia yet).",
  "timestamp": "2025-07-26T04:39:41.767161"
}