{
  "ptid_time": "128_S_0167_2006-09-15",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0167/2006-09-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 118,983 mm³, 208.9% above the reference mean. With a Z-score of 5.00 (100.0th percentile), this represents profound enlargement; whole brain volume measures 1,057,980 mm³, 2.0% below the reference mean. With a Z-score of -0.26 (39.8th percentile), this represents normal volume . ",
  "text_data": "Age is 76.9 years. Gender is Male. Education: 16 years. MMSE: 26.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (208.9% above reference mean, Z-score 5.00), indicating substantial atrophy, while whole brain volume is within normal limits (Z-score -0.26). The MMSE score of 26 is borderline but still within the normal range for age. APOE4 carrier status increases Alzheimer's risk but is not diagnostic alone.  \nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **Medium** (structural changes suggest neurodegeneration, but cognitive performance is not yet severely impaired)",
  "timestamp": "2025-07-26T13:34:49.999629"
}