{
  "ptid_time": "021_S_0642_2007-07-18",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0642/2007-07-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 64,666 mm³, 37.5% above the reference mean. With a Z-score of 1.09 (86.2th percentile), this represents mild enlargement; whole brain volume measures 950,506 mm³, 7.6% below the reference mean. With a Z-score of -1.00 (15.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 85.5 years. Gender is Male. Education: 16 years. MMSE: 20.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows mild ventricular enlargement and mild whole brain atrophy, which are consistent with neurodegenerative changes. The MMSE score of 20.0 suggests cognitive impairment, but the absence of APOE4 reduces genetic risk.  \nDiagnosis: Dementia  \nConfidence: Medium",
  "timestamp": "2025-07-26T01:33:52.012096"
}