{
  "ptid_time": "021_S_0337_2007-04-25",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0337/2007-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 99,835 mm³, 159.2% above the reference mean. With a Z-score of 3.81 (100.0th percentile), this represents profound enlargement; whole brain volume measures 1,019,620 mm³, 5.5% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (159.2% above reference mean, Z-score 3.81), indicating substantial atrophy, while whole brain volume is only slightly reduced (5.5% below reference mean, Z-score -0.72). Despite these structural changes, the MMSE score of 30.0 is normal, and there is no reported cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (structural changes suggest risk for future decline, but current cognitive performance is intact)",
  "timestamp": "2025-07-26T01:26:46.199614"
}