{
  "ptid_time": "027_S_0074_2012-01-03",
  "img_path": "/data/qiuhui/data/adni/images/027_S_0074/2012-01-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 97,555 mm³, 107.5% above the reference mean. With a Z-score of 3.12 (99.9th percentile), this represents profound enlargement; whole brain volume measures 968,171 mm³, 5.9% below the reference mean. With a Z-score of -0.78 (21.9th percentile), this represents normal volume . ",
  "text_data": "Age is 84.2 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (Z-score 3.12), which is often associated with neurodegeneration, but the whole brain volume is within normal limits (Z-score -0.78). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (ventricular enlargement is notable, but cognitive performance is preserved)",
  "timestamp": "2025-07-26T03:26:19.302372"
}