{
  "ptid_time": "002_S_0782_2008-10-17",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0782/2008-10-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 92,993 mm³, 97.8% above the reference mean. With a Z-score of 2.84 (99.8th percentile), this represents significant enlargement; whole brain volume measures 1,002,440 mm³, 2.6% below the reference mean. With a Z-score of -0.34 (36.7th percentile), this represents normal volume . ",
  "text_data": "Age is 83.6 years. Gender is Male. Education: 16 years. MMSE: 26.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The significant ventricular enlargement (Z-score 2.84) suggests possible atrophy, but whole brain volume is within normal limits (Z-score -0.34). The MMSE score of 26 is borderline (mild cognitive impairment range for some norms), but APOE4-negative status and preserved brain volume reduce dementia likelihood.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (due to conflicting ventricular/brain volume findings and borderline MMSE).",
  "timestamp": "2025-07-25T20:06:25.909403"
}