{
  "ptid_time": "018_S_0406_2009-07-30",
  "img_path": "/data/qiuhui/data/adni/images/018_S_0406/2009-07-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 90,091 mm³, 91.6% above the reference mean. With a Z-score of 2.66 (99.6th percentile), this represents significant enlargement; whole brain volume measures 857,330 mm³, 16.7% below the reference mean. With a Z-score of -2.19 (1.4th percentile), this represents significant atrophy. ",
  "text_data": "Age is 80.8 years. Gender is Male. Education: 11 years. MMSE: 20.0. Logical Memory: 2.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant ventricular enlargement (91.6% above mean) and whole brain atrophy (16.7% below mean), both with high Z-scores indicating severe deviation from normal. Combined with an MMSE score of 20 (consistent with cognitive impairment) and APOE4 positivity (a risk factor for Alzheimer's), this strongly suggests neurodegenerative disease.  \nDiagnosis: **Dementia** (likely Alzheimer's type)  \nConfidence: **High**",
  "timestamp": "2025-07-26T00:49:32.509816"
}