{
  "ptid_time": "082_S_1079_2007-12-13",
  "img_path": "/data/qiuhui/data/adni/images/082_S_1079/2007-12-13/t1.nii.gz",
  "img_finding": "",
  "text_data": "Age is 79.0 years. Gender is Male. Education: 18 years. MMSE: 22.0. Logical Memory: 2.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 497.60 pg/mL (mild reduced); Total tau: 222.60 pg/mL (normal ); Phosphorylated tau: 22.64 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows mild cognitive impairment (MMSE 22) with mild amyloid reduction (Aβ) but normal tau levels (T-tau and P-tau), suggesting early-stage Alzheimer's pathology without significant neurodegeneration. The presence of one APOE4 allele further supports increased Alzheimer's risk.  \nDiagnosis: MCI (likely due to Alzheimer's pathology)  \nConfidence: Medium (MMSE is borderline, and biomarker profile is suggestive but not definitive for dementia)",
  "timestamp": "2025-07-26T10:00:39.183585"
}