{
  "ptid_time": "094_S_4089_2012-08-15",
  "img_path": "/data/qiuhui/data/adni/images/094_S_4089/2012-08-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,665 mm³, 16.0% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; hippocampal volume measures 5,256 mm³, 30.5% below the reference mean. With a Z-score of -2.97 (0.1th percentile), this represents significant atrophy; whole brain volume measures 1,010,140 mm³, 6.4% below the reference mean. With a Z-score of -0.83 (20.2th percentile), this represents normal volume . ",
  "text_data": "Age is 74.7 years. Gender is Male. Education: 18 years. MMSE: 24.0. MoCA: 13.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.97, 0.1th percentile), which is strongly associated with Alzheimer's disease. The MMSE (24) and MoCA (13) scores indicate cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk. Ventricular and whole brain volumes are within normal ranges, suggesting focal rather than global atrophy.  \n\nDiagnosis: **Dementia** (likely Alzheimer's disease)  \nConfidence: **High**",
  "timestamp": "2025-07-26T10:28:36.499659"
}