{
  "ptid_time": "099_S_0352_2012-04-13",
  "img_path": "/data/qiuhui/data/adni/images/099_S_0352/2012-04-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,022 mm³, 35.3% above the reference mean. With a Z-score of 0.95 (83.0th percentile), this represents normal volume ; whole brain volume measures 730,263 mm³, 21.3% below the reference mean. With a Z-score of -2.56 (0.5th percentile), this represents significant atrophy. ",
  "text_data": "Age is 83.0 years. Gender is Female. Education: 14 years. MMSE: 29.0. MoCA: 22.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The patient shows significant whole brain atrophy (Z-score -2.56, 0.5th percentile) but normal ventricular volume. Despite high MMSE (29), the MoCA (22) suggests mild cognitive impairment (MCI). The absence of APOE4 reduces Alzheimer's risk but does not rule out other causes of atrophy.  \n**Diagnosis:** MCI  \n**Confidence:** Medium (due to conflicting MMSE/MoCA scores and lack of APOE4, but strong structural atrophy supports MCI)",
  "timestamp": "2025-07-26T10:55:31.872604"
}