{
  "ptid_time": "031_S_0321_2007-04-19",
  "img_path": "/data/qiuhui/data/adni/images/031_S_0321/2007-04-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,390 mm³, 32.1% below the reference mean. With a Z-score of -0.76 (22.3th percentile), this represents normal volume ; whole brain volume measures 896,046 mm³, 21.0% below the reference mean. With a Z-score of -2.98 (0.1th percentile), this represents significant atrophy. ",
  "text_data": "Age is 69.3 years. Gender is Male. Education: 18 years. MMSE: 25.0. Logical Memory: 6.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The whole brain volume shows significant atrophy (Z-score -2.98, 0.1th percentile), while ventricular volume is normal. The MMSE score of 25 is borderline, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-26T04:35:11.482240"
}