{
  "ptid_time": "094_S_4089_2011-12-14",
  "img_path": "/data/qiuhui/data/adni/images/094_S_4089/2011-12-14/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,565 mm³, 26.4% below the reference mean. With a Z-score of -2.57 (0.5th percentile), this represents significant atrophy; whole brain volume measures 1,034,170 mm³, 4.2% below the reference mean. With a Z-score of -0.54 (29.3th percentile), this represents normal volume . ",
  "text_data": "Age is 74.2 years. Gender is Male. Education: 18 years. MMSE: 22.0. MoCA: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.57, 0.5th percentile), which is strongly associated with Alzheimer's pathology. The MMSE (22) and MoCA (18) scores indicate cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk. Whole brain volume is normal, suggesting focal rather than global atrophy.  \nDiagnosis: **Dementia** (likely Alzheimer’s disease)  \nConfidence: **High**",
  "timestamp": "2025-07-26T10:28:32.362880"
}