{
  "ptid_time": "007_S_0041_2007-05-14",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0041/2007-05-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,002 mm³, 56.8% above the reference mean. With a Z-score of 1.30 (90.3th percentile), this represents mild enlargement; whole brain volume measures 931,047 mm³, 4.5% below the reference mean. With a Z-score of -0.56 (28.7th percentile), this represents normal volume . ",
  "text_data": "Age is 72.4 years. Gender is Female. Education: 14 years. MMSE: 24.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (56.8% above reference mean, Z-score 1.30), while whole brain volume is within normal limits (4.5% below reference mean, Z-score -0.56). The MMSE score of 24 suggests mild cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (MMSE supports MCI, but structural changes are not yet severe enough for dementia; APOE4 status raises suspicion for early Alzheimer's pathology).",
  "timestamp": "2025-07-25T21:43:15.491216"
}