{
  "ptid_time": "127_S_0844_2008-11-17",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0844/2008-11-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 78,099 mm³, 111.3% above the reference mean. With a Z-score of 3.00 (99.9th percentile), this represents profound enlargement; whole brain volume measures 827,715 mm³, 10.8% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 87.3 years. Gender is Female. Education: 12 years. MMSE: 22.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (Z-score 3.00) and mild whole brain atrophy (Z-score -1.30), which are consistent with structural changes seen in dementia. The MMSE score of 22.0 (below the typical cutoff of 24 for cognitive impairment) in an 87-year-old female further supports cognitive decline. The absence of APOE4 alleles does not rule out dementia, as it is not a definitive diagnostic marker.  \n\nDiagnosis: Dementia  \nConfidence: Medium",
  "timestamp": "2025-07-26T13:03:43.577420"
}