{
  "ptid_time": "021_S_0337_2012-04-24",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0337/2012-04-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 124,014 mm³, 163.8% above the reference mean. With a Z-score of 4.76 (100.0th percentile), this represents profound enlargement; whole brain volume measures 961,228 mm³, 6.6% below the reference mean. With a Z-score of -0.86 (19.4th percentile), this represents normal volume . ",
  "text_data": "Age is 81.8 years. Gender is Male. Education: 20 years. Handedness: Left. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities. MMSE: 30.0. MoCA: 26.0. Logical Memory: 16.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (Z-score 4.76), which is often associated with neurodegeneration, but the whole brain volume is within normal limits (Z-score -0.86). Cognitive scores (MMSE 30, MoCA 26) are borderline for MCI but not clearly impaired. APOE4 carrier status increases Alzheimer's risk but is not diagnostic.  \nDiagnosis: **MCI** (mild cognitive impairment)  \nConfidence: **Medium** (ventricular enlargement suggests neurodegeneration, but cognitive scores are not strongly impaired and brain atrophy is minimal)",
  "timestamp": "2025-07-26T01:29:50.572392"
}