{
  "ptid_time": "023_S_1190_2019-10-30",
  "img_path": "/data/qiuhui/data/adni/images/023_S_1190/2019-10-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,982 mm³, 19.0% above the reference mean. With a Z-score of 0.51 (69.6th percentile), this represents normal volume ; whole brain volume measures 892,713 mm³, 3.8% below the reference mean. With a Z-score of -0.46 (32.3th percentile), this represents normal volume . ",
  "text_data": "Age is 89.5 years. Gender is Female. Education: 13 years. MMSE: 25.0. MoCA: 20.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.41 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, though slightly below the mean for whole brain volume. The MMSE score of 25 is borderline normal, while the MoCA score of 20 suggests mild cognitive impairment. Elevated AV45 (amyloid PET) indicates significant amyloid deposition, which is a hallmark of Alzheimer's pathology.  \n\nDiagnosis: **MCI** (likely due to Alzheimer's disease)  \nConfidence: **Medium** (due to borderline MMSE and normal brain volumes, but strong biomarker evidence of amyloid pathology)",
  "timestamp": "2025-07-26T02:56:23.554913"
}